Write an equation in simplified form to represent (fd)(x) The function 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 for represents the percentage discount in decimal form for a rewards member staying x nights at the hotel.

please help I have no idea what I am doing, can anyone help explain what I am supposed to do here?