4a- Project XX has a cost of $12,700 and is expected to produce benefits (cash flows) of $3,150 per year for 5 years. Project ZZ costs $30,000 and is expected to produce cash flows of $6,300 per year for 5 years. Calculate the two projects' NPVs, IRRs, MIRRs, Payback period and PIs, assuming a cost of capital of 13.2%. If the projects are independent, which project(s) should be selected? If they are mutually exclusive projects, which project should be selected?

4b- Star Traders balance sheet shows $200 million in debt, $40 million in preferred Stock, and $360 million in total common equity. Stars tax rate is 40%, rd = 5.42%, rps = 5.21%, and rs = 13%. What is its WACC?