Suppose that the total revenue function for a commodity is R(x) = 25x - 0.05x2.
(a) Find R(50) and tell what it represents.
(b) Find the marginal revenue function.
(c) Find the marginal revenue at x = 50, and tell what it predicts about the sale of the next unit and the next 2 units.
(d) Find R(51) - R(50) and explain what this value represents.
Total revenue is in dollars and x is the number of units.