please try to explain every steps, thanks.

Your division is considering 2 investment projects, each which requires an upfront expenditure of $27 million. You estimate the cost of capital is 10% and that the investments will produce the following after-tax cash ows (in millions of dollars). Year Project A Project B 0 -$27 -$27 1 $5 $20 2 $10 $10 3 $15 $8 4 $22 $3 What is the regular payback period for each of these projects? (6 marks) What is the discounted payback period for each of these projects? (6 marks) If the projects are independent and the cost of capital is 10%, which project or projects would you undertake? (5 marks) If the projects are mutually exclusive and the cost of capital is 5%, which project should the rm undertake? (5 marks) If the projects are mutually exclusive and the cost of capital is 15%, which project should the rm undertake? (5 marks) Based on the protability index (PI), what is your recommendation concerning these projects if these projects are independent and the cost of capital is 10%