At 9:00, Paula has x cups of food in a container for her dog. Paula pours a 2 1/2 cup box of food into the container. Then she removes 3/4 cup of food to feed her dog. Now there are 5 1/4 cups of food in the container. write an equation that can be used to determine the number of cups, x, of food in the container at 9:00?

Which equation can be used to determine the number of cups of food, x, in the container at 9:00?

A.5 1/4 = x + 212 + 34
B.5 1/4 = x − 212 + 34
C.5 1/4 = x + 212 − 34
D.5 1/4 = x − 212 −34