diff --git a/flow-control.js b/flow-control.js
index 1e28c3aa..7d71f8b4 100755
--- a/flow-control.js
+++ b/flow-control.js
@@ -1,19 +1,42 @@
 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 {
+        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 {
+        return "You are a grownup";
+    }
 }
 
 function ternaryTeenager(age) {
-
+    return age >= 13 && age <= 19 ? "You are a teenager" : "You are not a teenager";
 }
 
 function switchAge(age) {
-
+    switch (age) {
+        case 13:
+        case 14:
+        case 15:
+        case 16:
+        case 17:
+        case 18:
+        case 19:
+            return "You are a teenager";
+        default:
+            return "You have an age";
+    }
 }