Barry took a math test. After 5 minutes, he finished 7 problems. After 25 minutes, he finished 47 problems. What is Barry’s rate of change? Simplify your answer.

Can anyone solve this?

Barry took a math test. After 5 minutes, he finished 7 problems. After 25 minutes, he finished 47 problems. What is Barry’s rate of change? Simplify your answer.

Can anyone solve this?

Answer:Step-by-step explanation: