Question

A tank is filling with water. After 2 minutes, it contained 12 gallons. After 5 minutes, it contained 30 gallons. What is the constant rate of change? enter the number only

Answer 1

Answer:

 in 2 min filled 12 gallon

in 5 min filled 30 gallon

2:5=12:30   so the rate of change is 6 every minute filled 6 gallon water