Problem 10-21 Payback, NPV, and MIR Your division is considering two Investment projects, each of which requires an up-front expenditure of $25 million produce the folowing after-tax cash nows (in miltions of dollars) (10 points) expenditure of $25 million. You etrnate that the cost of capital is 11%and that the investments will Year Project A ProjectB 20 10 10 20 a. What is the regular payback period for each of the payback period for each of the projects? Round your answers to two decimal places Project A years Project b. What is the discounted payback period for each of the projects? Round your answers to two decimal places Project A years Project ) year, rears c. Ir the two projects are independent and the cost of capital is 1 1%, which project or projects should the firm undertake