Simplify the expression (5x^4y^-3)^-2 need asap

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?

Carlos by 24 mi and ran 6 miles what is the ratio of the distance carlos ran to the distance he biked

How would you describe the difference between the graphs of f(x) = 2x2 and g(x) = -2x2?