be indicated by a minus sign. Do not round intermediate calculations. Round your answers to the nearest dollar. a. What is the Year- 0 net cash flow? $ (3) b. What are the net operating cash flows in Years 1,2 , and 3 ? c. What is the additional Year-3 cash flow (i.e, the after-tax salvage and the return of working capital)? $ 3 d. If the project's cost of capital is 12%, what is the NPV of the project? $ (3) Should the machine be purchased