Question:

An Internet bookstore charges 15 shipping for orders under

Last updated: 2/4/2023

An Internet bookstore charges 15 shipping for orders under

An Internet bookstore charges 15 shipping for orders under 100 but provides free shipping for orders of 100 or more The cost C of an order is a function of the total price x of the books purchased given by x 15 C x x if x 100 if x 100 Find C 50 C 90 C 100 and C 105 C 50 C 90 C 100 C 105