Noel is a computer repairman. To fix a computer, he charges a customer $40 per hour, plus a fixed fee of $15, represented by the function f(x) = 40x + 15.
In the equation, what does the x represent?
A.the number of hours Noel worked
B.the amount Noel charged per hour
C.the fixed fee
D.the total cost
GUYS HURRY
