diff --git a/filter1.js b/filter1.js
index 602ddc0..eae56f4 100644
--- a/filter1.js
+++ b/filter1.js
@@ -19,6 +19,9 @@ let people = [
 
 // (1) Write code that uses the filter function, and the below isCool function to return a list of people who are cool.
 
-let isCool = person => person.coolnessScore > 20
+let isCool = (person) => person.coolnessScore > 20
 
+const coolPeople = people.filter(isCool)
+
+console.log(coolPeople)
 // Your code goes here
diff --git a/filter2.js b/filter2.js
index fd52f91..ada8b2f 100644
--- a/filter2.js
+++ b/filter2.js
@@ -3,4 +3,9 @@ let misc = [3, "true", {a: 1, b: 2}, 7, [1, 2, 3], ['a', 'b', 'c'], "my favorite
 // Use filter to filter all strings out of the above array. 
 // Don't worry about strings in the nested array (misc[5] is considered an array, not a string)
 
+const noStrings = misc.filter((entry) => {
+    return typeof entry !== "string"
+})
+
+console.log(noStrings)
 // Your code goes here
diff --git a/foreach1.js b/foreach1.js
index 7158aaa..75d35f0 100644
--- a/foreach1.js
+++ b/foreach1.js
@@ -8,4 +8,8 @@
  
 let foods = ["pizza", "tacos", "ice cream", "sushi"];
 
+foods.forEach((foods) => {
+    console.log(`I like ${foods}`)
+})
 // your code here
+
diff --git a/foreach2.js b/foreach2.js
index 7c29104..a7e327d 100644
--- a/foreach2.js
+++ b/foreach2.js
@@ -10,5 +10,8 @@ let foods = [
   {name: "Cottage Cheese", level: "not very"}
 ];
 
+foods.forEach((food) => {
+  console.log(`${food.name} is ${food.level} delicious`)
+})
 // your code here
 
diff --git a/map1.js b/map1.js
index 9ec71f4..2a91c75 100644
--- a/map1.js
+++ b/map1.js
@@ -39,4 +39,20 @@ let forecast = [
 // Build an array of strings using the forecast objects above with the following pattern:
 // "Monday will have a high of 55F and a low of 53F."
 
+const dayOfWeek = forecast.map((day) => {
+    return day.day
+})
+const theHigh = forecast.map((high) => {
+    return high.high
+})
+const theLow = forecast.map((low) => {
+    return low.low
+})
+
+
+
+for (let i = 0; i < forecast.length; i++) {
+    console.log(`${dayOfWeek[i]} will have a high of ${theHigh[0]}F and a low of ${theLow[i]}F.`)
+}
+
 //Your code here
diff --git a/map2.js b/map2.js
index aa8ae04..cd4ad80 100644
--- a/map2.js
+++ b/map2.js
@@ -5,4 +5,15 @@ let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9]
 // For each remaining element, print a string declaring it larger than 30
 // e.g. "36 is larger than 30"
 
+const squaredArray = numbers.map(nums => {
+    return nums**2
+})
+
+const filteredArray = squaredArray.filter((nums) => {
+    return nums > 30
+})
+
+filteredArray.forEach((nums) => {
+    console.log(`${nums} is larger than 30`)
+})
 //Your code here
diff --git a/reduce.js b/reduce.js
index 50a1791..4376c99 100644
--- a/reduce.js
+++ b/reduce.js
@@ -5,8 +5,16 @@ const numbers = [1, 56, 2, 4, 1, 99, 3, 5]
 // Write something that takes the above array and returns the product of all the numbers
 // via multiplication
 
-// Use reduce to get the sum of all the numbers
+const product = numbers.reduce((total, current) => {
+      return total * current
+})
+console.log(product)
 
+// Use reduce to get the sum of all the numbers
+const theSum = numbers.reduce((total, current) => {
+      return total + current
+})
+console.log(theSum)
 // Hungry for more:
 
 const cities = [
@@ -34,6 +42,17 @@ const cities = [
 
 // Use reduce to get the sum of the population of all 5 cities
 
+const populationSum = cities.reduce((total, population) => {
+      return population.population + total
+}, 0)
+console.log(populationSum)
+
+const mostPop = cities.reduce((total, pop) => {
+      return Math.max(total, pop.population)
+}, 0)
+console.log(mostPop)
+
+
 // Use reduce to get the city with the highest population (output should be an object)
 
 // Even hungrier:
@@ -75,6 +94,22 @@ const developers = [
 // Use reduce to return an object with each languages as a property
 // And the number of developers who know that language as that property's value
 
+
+const numLanguages = developers.reduce((objects, person) => {
+      for (let i = 0; i < person.languages.length; i++) {
+            let langSel = person.languages[i]
+            if(objects.hasOwnProperty(langSel)) {
+                  objects[langSel] += 1
+            } else {
+                  objects[langSel] = 1
+            }
+      }
+      return objects
+}, {})
+console.log(numLanguages)
+
+
+
 // Expected outcome:
 // {
 //     JavaScript: 4,
@@ -87,9 +122,6 @@ const developers = [
 // This one is HARD
 
 // Hint 1: the desired output is an object, you might want to use that as your initial value
-
-
-
 // Hint 2: Each developer's languages is stored in an array. You might need to iterate over it.