number of hours used

Question

The Circle "K" Club is planning a service project for children at a local children's home. They plan to rent a "Dora the Explorer Moonwalk" for the event. The cost of the moonwalk will include a $70 delivery fee and $35 for each hour it is used. Write a function that describes the cost C for renting the moonwalk in terms of x, the number of hours used.

Answer 1

The $70 delivery fee will always have to paid, regardless of the number of hours.

Therefore using x to represent the number of hours rented, the cost would be:

C = $35x + $70