diff --git a/eating_cookies/eating_cookies.py b/eating_cookies/eating_cookies.py
index 62655d803..856d49e4e 100644
--- a/eating_cookies/eating_cookies.py
+++ b/eating_cookies/eating_cookies.py
@@ -6,7 +6,23 @@
 # a solution that is more efficient than the naive 
 # recursive solution
 def eating_cookies(n, cache=None):
-  pass
+    total = 0
+    print(n)
+    if n < 1:
+        print('base case: {}'.format(n))
+        return 1
+    if n-1 > 0:
+        print('minus 1: {}'.format(n))
+        total += (1 + eating_cookies(n-1))
+    if n-2 > 1:
+        print('minus 2: {}'.format(n))
+        total += (1 + eating_cookies(n-2))
+    if n-3 > 2:
+        print('minus 3: {}'.format(n))
+        total += (1 + eating_cookies(n-3))
+
+    return total
+
 
 if __name__ == "__main__":
   if len(sys.argv) > 1:
diff --git a/recipe_batches/recipe_batches.py b/recipe_batches/recipe_batches.py
index c845950c5..1b6a5110b 100644
--- a/recipe_batches/recipe_batches.py
+++ b/recipe_batches/recipe_batches.py
@@ -3,7 +3,15 @@
 import math
 
 def recipe_batches(recipe, ingredients):
-  pass 
+    batch_qty = []
+    try:
+        for ing_r in recipe:
+            batches = ingredients[ing_r]//recipe[ing_r]
+            batch_qty.append(batches)
+    except KeyError as ke:
+        return 0
+
+    return min(batch_qty)
 
 
 if __name__ == '__main__':
diff --git a/stock_prices/stock_prices.py b/stock_prices/stock_prices.py
index 9de20bc94..b0d715c8a 100644
--- a/stock_prices/stock_prices.py
+++ b/stock_prices/stock_prices.py
@@ -3,7 +3,14 @@
 import argparse
 
 def find_max_profit(prices):
-  pass
+    current_mindex = 0
+
+    for i in range(0, len(prices)-1):
+        if prices[i] < prices[current_mindex]:
+            current_mindex = i
+
+    return (max(prices[current_mindex+1:]) - prices[current_mindex])
+        
 
 
 if __name__ == '__main__':