Paul works for a company that deals in paints and dyes. he is paid a fixed monthly salary plus 15 percent commission on monthly sales over $20,000. if paul manages to achieve total monthly sales of $x, which is over $20,000, the function f(x) representing paul's monthly sales over $20,000 is given by . if x is the sales amount over $20,000, the function g(x) giving paul's commission is . the function g(f(x)) representing paul's commission on monthly sales above $20,000, where x is paul's total monthly sales amount, is given by . if paul's sales in a particular month are $27,500, his commission for the month is $