Question

I 1:00 p.m. the water level in the pool is 13 inches. at 1:30 PM the water level is 18 inches. at 2:30 PM to water level is 28 inches. what is the constant rate of change?

Answer 1

5 inches per 30 minutes
10 inches per 1 hour

Answer 2

5 inches for 30 minutes and 10 inches every hour