Express the ratio as a fraction in simplest form:18 ounces to 3 cups. (Hint) 1 cup = 8 ounces

Through non-collinear points there is exactly one plane.

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. x=-2y+1 and x+2y=9. show work