diff --git a/flow-control.js b/flow-control.js
index 1e28c3aa0e..1f54529b07 100755
--- a/flow-control.js
+++ b/flow-control.js
@@ -1,19 +1,55 @@
 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 if (age >= 19) {
+    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 :
+    return 'You are a teenager';
+    break;
+    case 14 :
+    return 'You are a teenager';
+    break;
+    case 15 :
+    return 'You are a teenager';
+    break;
+    case 16 :
+    return 'You are a teenager';
+    break;
+    case 17 :
+    return 'You are a teenager';
+    break;
+    case 18 :
+    return 'You are a teenager';
+    break;
+    case 19 :
+    return 'You are a teenager';
+    break;
+    default:
+    return 'You have an age';
+  }
 }