A particular computing company nds that its weekly prot. in dollars. from the production and sale of x laptop computers is P(x) = - 0.004x3 - (12x2 + 700x - 900, Currently the company builds and sells 7 laptops weekly. a) What is the current weekly prot? b) How much prot would be lost if production and sales dropped to 6 laptops weekly? c) What is the marginal prot when x = 7? d) Use the answer from part (a) and (o) to estimate the prot resulting from the production and sale of 8 laptops weekly. a) The current weekly prot is $ . (Round to the nearest cent as needed.) b) The decrease in prot is $E. (Round to the nearest cent as needed.) c) The marginal prot when x = 7 is 3 (Round to the nearest cent as needed.) d) The prot resulting from the production and sale of 8 laptops weekly is approximately $D. (Round to the nearest cent as needed.)