Let p = 20 - J; and C(x) = 510 + 2x, where x is the number of garden hoses that can be sold at a price of $p per unit and C(x) is the total cost (in dollars) of producing x garden hoses. (A) Express the revenue function in terms of x. (B) Graph the cost function and the revenue function in the same viewing window for 0 S x 5 400. Use approximation techniques to find the breakeven points. (A) RtX) = D