i need a1 and b, thanks in advance. i'll like ur answer

Howell Petroleum, Incorporated, is trying to evaluate a generation project with the following cash flows: a-1. What is the NPV for the project if the company requires a return of 10 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) a- Should the firm accept this project? No Yes b. (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)