a. What is the regular payback period for each of the projects?b. What is the discounted payback period for each of the projects?c. If the two projects are independent and the cost of capital is 10 percent which project or projects should the firm undertake?d. If the two projects are mutually exclusive and the cost of capital is 5 percent which project should the firm undertake?e. If the two projects are mutually exclusive and the cost of capital is 15 percent which project should the firm undertake?f. What is the crossover rate?g. If the cost of capital is 10 percent what is the modified IRR (MIRR) of each project?