I'm giving away 50 points to whoever correctly answers and fully explains this for me!!! Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride.

The function f(x) = -1.25x + 64 can be used to determine how much money he has left over after x rides? What does f(17) represent?

A. Your friend paid for 17 rides and spent $42.75.

B. Your friend paid for 17 rides and had $37.25 left over.

C. Your friend paid for 17 rides and had $42.75 left over.

D. Your friend paid for 17 rides and spent $37.25.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =