A performer's earnings include a flat booking fee and a percentage of ticket sales. Which expression could represent the performer's earnings?

A. begin mathsize 18px style 5 comma 000 open parentheses 0.15 x close parentheses end style

B. begin mathsize 18px style 5 comma 000 plus 0.15 x end style

C. begin mathsize 18px style fraction numerator 5 comma 000 over denominator 0.15 x end fraction end style

D. begin mathsize 18px style fraction numerator 0.15 x over denominator 5 comma 000 end fraction end style