Faye says that the perimeter of the rectangle shown
is 2x + (x + 10) + 2x + (x + 10). khai says that the
perimeter is 2(2x) + 2(x + 10). jesse says that the
perimeter is 4x + 20. who is correct? explain.
show your work.

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?