Which best summmarize the pyhagorean theorem

Using elimination, what is -4x+2y=-12 4x+8y=-24

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?

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work