Caroline used a pump to remove water from a pond. The pump removes 300 gallons of water-per hour. On Saturday, she used the pump to remove 450 gallons. She continued to use the pump on Sunday. Which equation represents the relationship between the total amount ofwater (y), in gallons, Caroline removed from the pond over the weekend after using the pump
for x hours on Sunday?
(A) y 300x + 450 (B) y 300(x + 450) (.C) y 450x300
(D) y = 450(x + 300)