Kelly works at her own nail salon. Today, she did 9 manicures and received $36.00 overall in tips.
If x represents the cost of each manicure, which of the following equations can be used to find the total amount of money she earned, including tips, for her nail salon today?
A.
y = 36x + 9
B.
y = 9(x + 36)
C.
y = 9x + 36
D.
y = 36(x + 9)