PLEASE HELP ME The function f(x) =240x represents the cost of staying at a particular hotel for x nights at the full room rate of $240 per night. The hotel gives its rewards members a discount based on the length of their stay. Each additional night that rewards members stay earns them an additional 5% discount on the total cost of their stay up to a 30% discount. The function d(x) = 0.05(x - 1) for 1 < x ≤ 7 represents the percentage discount in decimal form for a rewards member staying x nights at the hotel.

(Part A) Write an equation in simplified form to represent (fd) (x)

(Part B) Evaluate (fd)(4), and explain what this value represents.