A particular computing company finds that its weekly profit, in dollars, from the production and sale of x laptop computers is P(x)= - 0.004x -0.2x~ +700x -900. Currently the company builds and sells 8 laptops weekly a) What is the current weekly profit? b) How much profit would be lost if production and sales dropped to 7 laptops weekly? c) What is the marginal profit when x = 8? d) Use the answer from part (a) and (c) to estimate the profit resulting from the production and sale of 9 laptops weekly. a) The current weekly profit is $ (Round to the nearest cent as needed.) b) The decrease in profit is $ (Round to the nearest cent as needed.) c) The marginal profit when x = 8 is $ (Round to the nearest cent as needed.) d) The profit resulting from the production and sale of 9 laptops weekly is approximately $ (Round to the nearest cent as needed.)