Cell phones were sold ata store starting at 8:00 a. m. The number of cell phones sold is modeled by f(x) = 4x2–8x+ 50, where xis the number of hours after 8:00 a. m.The average cost for each phone is modeled by g(x) = 20x2+ 10x+ 200.Create a polynomial R(x) that can beused to model the total revenue.