A local pizza shop sells large pies for $7 each. If the cost of the order is proportional to the number of pizzas would they charge a delivery charge per pizza or per order ?

charge per pizza.

To determine whether the pizza shop would charge a delivery charge per pizza or per order, we need to understand the concept of proportionality.

In this case, it is mentioned that the cost of the order is proportional to the number of pizzas. This means that as the number of pizzas increases, the total cost of the order also increases proportionally.

If the pizza shop charges a delivery charge per pizza, it would mean that each pizza adds an additional cost to the delivery charge. For example, if there is a delivery charge of $2 per pizza, and you order 2 pizzas, the delivery charge would be $4.

On the other hand, if the pizza shop charges a delivery charge per order, it means that regardless of the number of pizzas you order, the delivery charge remains the same. For example, if there is a delivery charge of $5 per order, it will be the same whether you order 1 pizza or multiple pizzas.

In order to determine which method the pizza shop follows, you would need to inquire with the pizza shop directly or check their website or menu for any information regarding delivery charges.