Joelle has $15.75. She spent $6.38 at the store. Which equation can be used to represent how much money, x, Joelle has left?
A6.38x = 15.75
Bx + 15.75 = 6.38
Cx−6.38=15.75
Dx + 6.38 = 15.75
A6.38x = 15.75
Bx + 15.75 = 6.38
Cx−6.38=15.75
Dx + 6.38 = 15.75