What property of Integer exponents is being displayed here: 8⁷ x 2⁷

For additional extra credit, please simplify the expression above. If you cannot type exponents, please spell out the answer. For example, 4⁷ can be written four to the seventh power.

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?