Carlos and his friends are thinking about taking a cab home. write a formula that will them decide how much each friend will have to pay. let's let w = price per mile, x = number of miles traveled, y = number of friends in the cab, z = costs for each friend.

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?