Done.

Author: zachyoungdale

flow-control.js

@@ -1,19 +1,25 @@
 function basicTeenager(age) {
-
+if (age >= 13 && age <= 19) return ("You are a teenager!")
 }
 
 function teenager(age) {
+if (age >= 13 && age <= 19) return ("You are a teenager!")
+else if (age < 13 || age > 19) return ("You are not a teenager")
 
 }
 
 function ageChecker(age) {
-
+if (age >= 13 && age <= 19) return ("You are a teenager!")
+else if (age <= 12) return ("You are a kid")
+else if (age >= 20) return ("You are a grownup")
 }
 
 function ternaryTeenager(age) {
-
+if (age >= 13 && age <= 19) return ("You are a teenager")
+else if (age < 13 || age > 19) return ("You are not a teenager")
 }
 
 function switchAge(age) {
-
+if (age >= 13 && age <= 19) return ("You are a teenager")
+else if (age < 13 || age > 19) return ("You have an age")
 }