Please answer both

Cengage Dig. Start Page W Review Final. C(x) = 50 + 0.10x + 0.001x dollars. (a) Calculate the marginal revenue R(x) and profit P(x) functions. HINT [See Example 2.] R(X) - 0.9 P(x) = 0.8 - 0.002x V (b) Compute the revenue and profit, and also the marginal revenue and profit, if you have produced and sold 500 copies of the latest edition. revenue profit X marginal revenue .9 per additional copy marginal profit $-2 per additional copy Interpret the results. The approximate loss B - from the sale of the 501st copy is $ -2 X (c) For which value of x is the marginal profit zero? X copies Interpret your answer. The graph of the profit function Is a parabola with a vertex at x , so the profit is at a maximum when you produce and sell copies. Need Help? Road It WANEFMAC7 11.3.032. MY NOTES PRACTICE ANOTHER 11. [0/0 Points] DETAILS PREVIOUS ANSWERS Calculate - You need not expand your answer. y = (x0.8 - 3x - 4)(x-1 + x -2) dy dx