Answer all questions and show work for each please

Part III. Questions 24-26 are worth 11 points each. You need to show your calculations and explain your answers to get credit for these questions. ***If you are using a financial calculator to solve these questions, show all entries 24. Consider the following two mutually exclusive projects Year Cash Flow (A) Cash Flow (B) -$421,000 -$38,000 46,000 20,000 60,000 13,700 77,000 16,600 536,000 13,400 The required return on these investments is 12 percent (If you are using a financial calculator to solve this problem, show all the entries!) a. What is the payback period for each project? b. What is the NPV for each project