The monthly price of a class at Jolene’s Dance Studio is $75. The studio offers a 10% discount to siblings who sign up for the class.

Let m equal the monthly price of a dance class after the sibling discount.
Which equation can be used to find m?

A. m = 75 - 0.10(75)

B. m = 75 + 0.10(75)

C. m = 75 + 10

D. m = 75 - 10