800-X X, and the cost functions is C(x) = 240 4x+ 22531 The marginal revenue function of a good is MR = - (a) Find the maximum revenue. (b) Find the price of each unit if 800 units are supplied in the market. (b) Find the break-even point. 200 80

(a) How long will it take for a sum of money to double if it invested at rate 6.05% interest compounded continuously? (b) The total revenue in millions after n years is given by R = 5e-0.15n After how many years the revenue will decline to 2.7 million