Revenue, cost, and profit functions. A company manufactures 10- and 3-speed bicycles. The weekly demand and cost equations are p= 230minus 9x + y q= 130 +xminus4y C(x, y)= 200 + 80x + 30y where$pis the price of a 10-speed bicycle, $q is the price of a 3-speed bicycle, x is the weekly demand for 10-speed bicycles, y is the weekly demand for 3-speed bicycles, andC(x, y)is the cost function. Find the weekly revenue functionR(x, y)and the weekly profit functionP(x, y).EvaluateR(10, 15) andP(10, 15)