Riley discovers a leak in his kitchen sink. He puts a bowl under the leak to collect the water. In 3 hours he collect 2 cups of water. In 6 hours he collects 4 cups of water. In 12 hours he collects 8 cups of water. In 18 hours he collects 12 cups of water.

What your doing hear is multiplying by 3 and adding 2!

Step-by-step explanation:

1) 3 hours of rain he collects 2 cups of water

2) 6 hours of rain and he collects 4 cups of water

3) 12 hours of rain he collects 8 bottles of water

4) 18 hours he collects 12 bottles of water

Multiply 3 then add 2

not possible cause the answer for 18 h is 16 c