please help me with this financial management question. thank you. will leave good review!

Year 0 1 2 3 4 Cash Flow (A) Cash Flow (B) -$62,000 -$62,000 38,000 24,800 32,000 28,800 22,000 34,000 14,400 24,800 a-1. What is the IRR for each of these projects? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) a-2. If you apply the IRR decision rule, which project should the company accept? b-1. Assume the required return is 13 percent. What is the NPV for each of these projects? (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) b-2. Which project will you choose of you apply the NPV decision rule? c-1. Over what range of discount rates would you choose Project A? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) c-2. Over what range of discount rates would you choose Project B? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) d. At what discount rate would you be indifferent between these two projects? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) 31.38% 28.37% a-1. Project A Project B a-2. b-1. Project A Project B b-2. C-1. C-2. % % % d. d. Discount rate