answer queetion with formulas easily explained pls.

Here are the two cash flow forecasts for two mutually exclusive projects. Find out each project's discounted payback, NPV, IRR, and MIRR at a cost of capital of 7.25%. What is the project's crossover rate? At what interest rates will you prefer project B to A? Time 0 1 2 3 Project A (8500) 3600 2400 2850 5200 Project B (9500) 3900 2900 2900 5550