diff --git a/Codecademy.md b/Codecademy.md
index 2b3213f..f515096 100644
--- a/Codecademy.md
+++ b/Codecademy.md
@@ -87,10 +87,16 @@ strings"""
 True = int(1)
 False = int(0)
 
+## Boolean Expressions
+
+  `and` evaluates true if both are true.
+  `or` evaluates true if either are true.
+  `not` return the opposite boolean value.
+
 ## Relational Operators (ch.4, ex. 3)
 
-  `==` returns `True` if is is equal and returns `False` otherwise.
-  `!=` returns `True` if is is NOT equal and returns `False` otherwise.
+  `==` returns `True` if is is equal
+  `!=` returns `True` if is is NOT equal
 
   Here are more of he same kind of operator:
 
@@ -98,9 +104,8 @@ False = int(0)
   `<` less than
   `>=` greater than or equal to
   `<=` less than or equal to
-
-  
-
+# if, else, if else
+  `elif` = if else
 
 # Datatypes
 
diff --git a/h.py b/h.py
new file mode 100644
index 0000000..954d94f
--- /dev/null
+++ b/h.py
@@ -0,0 +1,17 @@
+def ground_shipping(weight):
+  flat = 20.00
+  
+  if weight <= 2:
+    cost = flat + 1.50 * weight
+  if (weight > 2) and (weight <= 6):
+    cost = flat + weight * 3.00
+  if (weight > 6) and (weight <= 10):
+    cost = flat + weight * 4.00
+  if (weight > 10):
+    cost = flat + weight * 4.75
+    
+  return cost
+
+premium_ground_shipping = 125.00
+
+print(premium_ground_shipping(8.4))