show how to get part b in financial calculator , be specific and clear.thank you

You are a consultant to a large manufacturing corporation considering a project with the following net after-tax cash flows fin millions of dollars): The projects beta is 1.4. Assuming rf=6s and g(rM)=161 Required: a. What is the net present value of the project? (Do not round intermediate calculations. Enter your answer in millions rounded to 2 decimal places.) b. What is the highest possible beta estimnte for the project before its NPY becomes negative? (Do not round intermediate calculations. Pound your answer to 3 decimal places.)