Please show excel work and equations!!!

You are considering the following three projects. A&B are mutually exclusive while C is independent. Following are their expected cash flows Assuming no capitol rationing a required rate of return (cost of capital) of 12% for all three projects. 1) Calculate NPV for each project. 2) Calculate IRR(s) for each project. 3) Calculate PI for each project. 4) Using cost of capital, as a financing and reinvestment rate, calculate MIRR for each project. 5) If A\&B profiles cross, calculate the exact crossover point between project A&B. 6) Which of the three projects, if any, should be accepted and why? Please highlight and label each of your answers on the spread sheet