Determine the value of x

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?

Solve the system of equations. y=3x-1 and y=-2x+9. show work

Which expression is equivalent to the expression for the perimeter of the larger garden?