The price p (in dollars) and the demand x for a particular clock radio are related by the equation x = 5000 - 50p. a. Express the price p in terms of the demand x, and find the domain of this function. b. Find the revenue R(x) from the sale of x clock radios. What is the domain of R? c. Find the formula for the marginal revenue. d. Find the marginal revenue at a production level of 4200 clock radios. e. Interpret R'(4800) = - 92.00. a. p= p(x) = A Price of the Radio, p(x), dollars 100 90- 80- 70 60 50 40 30 20 10 1000 2000 3000 4000 5000 Number of clock radios demanded, x