Question

Every 7 hours I eat 4 cupcakes, I need enough to last for 21 hours.

Answer 1

7 3 21
— x — = —
4 3 12

You need 12 cupcakes

Answer 2

Answer:12

Step-by-step explanation: for every 7hr you eat 4 cupcakes which means if you multiply 7x3=21 and 4x3=12 than you can see the answer is 12.