I am selling my car for 10,000 $ . If someone buys my car within the first 5 days, I will offer a 20% discount, but if someone buys my car within the first 3 days, I will offer the 20% discount with an additional 500 $ rebate.

A. Write a function f(x) to represent the price after the 20 % discount.

B. Write a function g(x)n to represent the price after 500 $ rebate.

C. Write a composition function to find the price after both price adjustments.