Question

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: A. x-20,000 B. x+20,000 C. 20,000-x D. 20,000/x If x is the sales amount over $20,000, the function g(x) giving Paul's commission is: A. 0.15-x B. 0.15x C. 15-x/100 D. 0.15/x

Answer 1

Since x dollars is the total monthly sales Paul makes when his sales exceed 20,000 dollars, then the function f(x) should add x dollars and $20,000. The answer is B. x+20,000.

Assuming that x dollars is still the sales after gaining $20,000, then 15 percent of x is modeled by B. 0.15x. 

Answer 2

Answer:

Given that 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:

$f(x)=x+20000$

If x is the sales amount over $20,000, the function g(x) giving Paul's commission is given by  

$g(x)=15/100 of x=0.15x$