Given the cost function, C(q)= 4(q − 2)^3 + 50, and revenue function R(q)= pq of a companywith q the quantity of items produced, in hundreds. If the selling price of a unit is R 30, what quantity will maximise profit and company produce more than 400 items.Determine  the price, that maximises revenue if demand is represented by q = −2p + 128.