Plz help.... A hair salon charges a fixed rate of $25.00 for a haircut and then an additional $15 for any other services. Write a function to model the cost of services there and then evaluate it if you also get a shampoo, highlight, and blow dry.

A)
f(x) = 15x + 25; f(3) = 70


B)
f(x) = 15x + 25; f(1) = 40


C)
f(x) = 25x + 15; f(3) = 90


D)
f(x) = 25x + 15; f(1) = 40