Answer:
In 15 minutes, 4 2/7 inches of rain fell. In 28 minutes, 8 inches of rain fell.
Explanation:
First, find the amount of rain fell in 1 minute. Divide the total rain by how long it took for it all to fall.
12/42= (2/7)
Then, multiply that number by the amount of time.
(2/7)*15=30/7
(2/7)*28=8