he total revenue, in dollars, from the sale of x units of a product is given by R(x) = 2200x In(8x+8) (a) Find the marginal revenue MR function. MR = 4 (b) Find the marginal revenue when 100 units are sold. (Round your answer to the nearest cent $ Interpret your result. O The total cost of producing 100 units is this amount. Selling one additional unit yields approximately this amount. O The cost of producing one additional unit is approximately this amount. O The total revenue from selling 100 units is this amount.