A small tie shop finds that at a sales level of x ties per day its marginal profit is MP(x) dollars per tie, where MP(x) = 1.35 + 0.08x - 0.0012x". Also, the shop will lose $60 per day at a sales level of x = 0. Find the profit from operating the shop at a sales level of x ties per day. (. . . P(x) =