5. Marginal revenue. Pierce Manufacturing determines that the daily revenue, in dollars, from the sale of x lawn chairs is R(x) : 0.0053;3 + 0.01::2 + 0.5x. Currently, Pierce sells 70 lawn chairs daily. 3) What is the current daily revenue? b) How much would revenue increase if 73 lawn chairs were sold each day? :2) What is the marginal revenue when 70 lawn chairs are sold daily? (1) Use the answer from part (c) to estimate R(71), R(72), and R(73). 7. Marginal profit. Crawford Computing finds that its weekly profit, in dollars, from the production and sale of 3: laptop computers is P(x) : -0.004x3 0.33:2 + 6003: 800. Currently Crawford builds and sells 9 laptops weekly. a) What is the current weekly profit? b) How much profit would be lost if production and sales dropped to 8 laptops weekly? c) What is the marginal profit when x = 9? (1) Use the answers from parts (a)(c) to estimate the profit resulting from the production and sale of 10 laptops weekly