diff --git a/00_variables_strings_numbers.ipynb b/00_variables_strings_numbers.ipynb
index 28ecbac..74e05a1 100644
--- a/00_variables_strings_numbers.ipynb
+++ b/00_variables_strings_numbers.ipynb
@@ -18,23 +18,33 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 55,
       "metadata": {
         "id": "JLTMQ6_2B_b0"
       },
       "outputs": [],
       "source": [
+        "my_name = \"Erynn\"\n",
+        "\n",
         "# `greeting` is a variable; \"Hello world!\" is a string\n",
         "greeting = \"Hello world!\""
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 56,
       "metadata": {
         "id": "cZbnXEVXB_b1"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Hello world!\n"
+          ]
+        }
+      ],
       "source": [
         "# `print()` is a function\n",
         "print(greeting)"
@@ -42,14 +52,23 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 57,
       "metadata": {
         "id": "TOzUs8zPB_b1"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Hello world! And you, Erynn!\n"
+          ]
+        }
+      ],
       "source": [
         "# What happens when we evaluate this cell?\n",
-        "greeting"
+        "greeting\n",
+        "print(f\"{greeting} And you, {my_name}!\")"
       ]
     },
     {
@@ -61,7 +80,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 58,
       "metadata": {},
       "outputs": [],
       "source": [
@@ -70,11 +89,20 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 59,
       "metadata": {},
-      "outputs": [],
-      "source": [
-        "# Your turn --- how do we **print** the variable?"
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Hello, Intro to DH!\n"
+          ]
+        }
+      ],
+      "source": [
+        "# Your turn --- how do we **print** the variable?\n",
+        "print(greeting)"
       ]
     },
     {
@@ -88,7 +116,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 60,
       "metadata": {},
       "outputs": [],
       "source": [
@@ -97,16 +125,27 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 61,
       "metadata": {},
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "'this is a constant'"
+            ]
+          },
+          "execution_count": 61,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "I_SHOULD_NEVER_CHANGE"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 62,
       "metadata": {},
       "outputs": [],
       "source": [
@@ -115,9 +154,20 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 63,
       "metadata": {},
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "\"uh-oh! don't do this!!!\""
+            ]
+          },
+          "execution_count": 63,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "I_SHOULD_NEVER_CHANGE"
       ]
@@ -154,9 +204,20 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 64,
       "metadata": {},
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "'this is a string **literal**'"
+            ]
+          },
+          "execution_count": 64,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "# A literal is data that is declared directly -- it is **literally** what it is\n",
         "\"this is a string **literal**\""
@@ -164,11 +225,19 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 65,
       "metadata": {
         "id": "e6_bNdg5B_b3"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "This is a string.\n"
+          ]
+        }
+      ],
       "source": [
         "ex_1  = \"This is a string.\"\n",
         "print(ex_1)"
@@ -176,11 +245,19 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 66,
       "metadata": {
         "id": "DEmVQKnLB_b3"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "This is also a string\n"
+          ]
+        }
+      ],
       "source": [
         "ex_2 = 'This is also a string'\n",
         "print(ex_2)"
@@ -188,35 +265,81 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 67,
       "metadata": {
         "id": "6N7JobIrB_b3"
       },
-      "outputs": [],
-      "source": [
-        "ex_3 = \"Here is a string.'\n",
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Here is a string.\n"
+          ]
+        }
+      ],
+      "source": [
+        "ex_3 = \"Here is a string.\"\n",
         "print(ex_3)"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 68,
       "metadata": {
         "id": "pwaxgu1HB_b3"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "I asked the question, \"When should I use single quotes.\"\n",
+            "I'm writing a string with double quotes -- it's making it easier to use apostrophes.\n"
+          ]
+        }
+      ],
       "source": [
         "ex_4 = 'I asked the question, \"When should I use single quotes.\"'\n",
-        "print(ex_4)"
+        "print(ex_4)\n",
+        "\n",
+        "ex_5 = \"I'm writing a string with double quotes -- it's making it easier to use apostrophes.\"\n",
+        "print(ex_5)"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 69,
+      "metadata": {},
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "I said, 'He said, \"She said, 'Forward slashes are the way to go!'\"'\n"
+          ]
+        }
+      ],
+      "source": [
+        "ex_6 = \"I said, 'He said, \\\"She said, 'Forward slashes are the way to go!'\\\"'\"\n",
+        "print(ex_6)"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 70,
       "metadata": {
         "id": "1E3MwY0DB_b3"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "edward gibbon\n"
+          ]
+        }
+      ],
       "source": [
         "historian = \"edward gibbon\"\n",
         "print(historian)"
@@ -224,22 +347,38 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 71,
       "metadata": {
         "id": "ComprGlSB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Edward Gibbon\n"
+          ]
+        }
+      ],
       "source": [
         "print(historian.title())"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 72,
       "metadata": {
         "id": "c-GaA4_JB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "<built-in method title of str object at 0x73dc08d11bb0>\n"
+          ]
+        }
+      ],
       "source": [
         "# What happens if we forget the parentheses on `title()`?\n",
         "print(historian.title)"
@@ -254,7 +393,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 2,
+      "execution_count": 73,
       "metadata": {},
       "outputs": [],
       "source": [
@@ -267,20 +406,40 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 74,
       "metadata": {},
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "\n",
+            "I'm on multiple lines!\n",
+            "\n",
+            "Whoa!\n",
+            "\n"
+          ]
+        }
+      ],
       "source": [
         "print(multiline_string)"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 75,
       "metadata": {
         "id": "k5K8KbEqB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "becky chambers\n"
+          ]
+        }
+      ],
       "source": [
         "novelist = \"Becky Chambers\"\n",
         "print(novelist.lower())"
@@ -288,29 +447,51 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 76,
       "metadata": {
         "id": "Yo-qC0MwB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "True"
+            ]
+          },
+          "execution_count": 76,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "\"becky\" == \"becky\""
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 77,
       "metadata": {
         "id": "QbBcRQZfB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "False"
+            ]
+          },
+          "execution_count": 77,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "\"becky\" == \"Becky\""
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 78,
       "metadata": {
         "id": "6bJmR4ZSB_b4"
       },
@@ -322,11 +503,19 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 79,
       "metadata": {
         "id": "ccEVnJY-B_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "ada lovelace\n"
+          ]
+        }
+      ],
       "source": [
         "full_name = first_name + \" \" + last_name\n",
         "print(full_name)"
@@ -334,11 +523,19 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 80,
       "metadata": {
         "id": "s3ukpffIB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            " Hello, Ada Lovelace\n"
+          ]
+        }
+      ],
       "source": [
         "greeting = f\" Hello, {first_name} {last_name}\"\n",
         "print(greeting.title())"
@@ -355,67 +552,121 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 81,
       "metadata": {
         "id": "O4d0bejVB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "tab\n"
+          ]
+        }
+      ],
       "source": [
         "print(\"tab\")"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 82,
       "metadata": {
         "id": "8JguVX8QB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "\ttab\n"
+          ]
+        }
+      ],
       "source": [
         "print(\"\\ttab\")"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 83,
       "metadata": {
         "id": "9XqoF39uB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Languages: \n",
+            "Greek\n",
+            "Latin\n",
+            "English\n"
+          ]
+        }
+      ],
       "source": [
         "print(\"Languages: \\nGreek\\nLatin\\nEnglish\")"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 84,
       "metadata": {
         "id": "abf-wbFVB_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "'     string       '"
+            ]
+          },
+          "execution_count": 84,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
-        "str_rspace = \"string       \"\n",
-        "print(str_rspace)"
+        "str_rspace = \"     string       \"\n",
+        "str_rspace"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 85,
       "metadata": {
         "id": "B0MQPD2_B_b4"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "     string\n"
+          ]
+        }
+      ],
       "source": [
         "print(str_rspace.rstrip())"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 86,
       "metadata": {
         "id": "PtN_oFpCB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "     string       .\n"
+          ]
+        }
+      ],
       "source": [
         "example = str_rspace + \".\"\n",
         "print(example)"
@@ -423,11 +674,19 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 87,
       "metadata": {
         "id": "49wF2WPMB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "     string.\n"
+          ]
+        }
+      ],
       "source": [
         "example_2 = str_rspace.rstrip() + \".\"\n",
         "print(example_2)"
@@ -444,11 +703,22 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 88,
       "metadata": {
         "id": "PzEDVoWwB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "5072"
+            ]
+          },
+          "execution_count": 88,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "# integers\n",
         "238 + 4834"
@@ -456,29 +726,51 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 89,
       "metadata": {
         "id": "4J0s8k45B_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "12"
+            ]
+          },
+          "execution_count": 89,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "19 - 7"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 90,
       "metadata": {
         "id": "hA-9haewB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "216"
+            ]
+          },
+          "execution_count": 90,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "54 * 4"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 91,
       "metadata": {
         "id": "14LxsedTB_b5"
       },
@@ -489,51 +781,95 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 92,
       "metadata": {
         "id": "3mKwnS3gB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "45"
+            ]
+          },
+          "execution_count": 92,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "num"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 93,
       "metadata": {
         "id": "PDogTSWoB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "50"
+            ]
+          },
+          "execution_count": 93,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "num + 5"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 94,
       "metadata": {
         "id": "YUb8QZJLB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "int"
+            ]
+          },
+          "execution_count": 94,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "type(num)"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 95,
       "metadata": {
         "id": "YxNBSpHkB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "3.0"
+            ]
+          },
+          "execution_count": 95,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "30 / 10  # this will return a float"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 96,
       "metadata": {
         "id": "QZ3NwuPzB_b5"
       },
@@ -544,33 +880,66 @@
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 97,
       "metadata": {
         "id": "sp-kh3TaB_b5"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "4.285714285714286"
+            ]
+          },
+          "execution_count": 97,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "f"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 98,
       "metadata": {
         "id": "UDRnydXbB_b6"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "float"
+            ]
+          },
+          "execution_count": 98,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "type(f)"
       ]
     },
     {
       "cell_type": "code",
-      "execution_count": null,
+      "execution_count": 99,
       "metadata": {
         "id": "LDcm4C4gB_b6"
       },
-      "outputs": [],
+      "outputs": [
+        {
+          "data": {
+            "text/plain": [
+              "27"
+            ]
+          },
+          "execution_count": 99,
+          "metadata": {},
+          "output_type": "execute_result"
+        }
+      ],
       "source": [
         "3 ** 3"
       ]
@@ -581,7 +950,7 @@
       "provenance": []
     },
     "kernelspec": {
-      "display_name": ".venv",
+      "display_name": "Python 3",
       "language": "python",
       "name": "python3"
     },
@@ -595,7 +964,7 @@
       "name": "python",
       "nbconvert_exporter": "python",
       "pygments_lexer": "ipython3",
-      "version": "3.12.7"
+      "version": "3.12.1"
     }
   },
   "nbformat": 4,