: A clogged bathtub drains at a constant rate. The amount of water in the bathtub changes by – 3.75 gallons in one hour. What is the change in the amount of water in the bathtub after 13 of an hour? a. – 1.25 gallons b. – 2.25 gallons c. – 6.25 gallons d. – 11.25 gallons