. The cost function for proclusing x units of a product is ( c x ) = - 0, 00 3 x 2 + 41 2 x + 3 co. The revenue function is RIX) = 138 x - 0, 15 x2. Determine the marginal profit for the sale of 160 units of the procluct 2. The following furction clescribes the motion of on arrow shot upwards . The height is in meters after time .t. in necalls h ct ) = - 5+2 + 40+ + 2 ( ) Find the maximum height reached by the arrow b ) What is the impact velocity of the arrow when it hits the gromel