Please help!

hinus sign. Do not round intermediate calculations. Round your answers to the nearest dollar. a. What is the Year- 0 net cash flow? $ b. What are the net operating cash flows in Years 1, 2, and 3? Year 1:$ Year 2:\$ Year 3:\$ c. What is the additional Year-3 cash flow (i.e, the after-tax salvage and the return of working capital)? $ d. If the project's cost of capital is 14%, what is the NPV of the project? $ Should the machine be purchased