4. What is the profitability index for a project costing $40,000 today (so CF0=$40,000 ) and then returns $25,000 annually for 4 years at an opportunity cost of capital (or WACC) of 10% ? 5. Based on the NPV criteria, what is the maximum that should be invested in a project at time zero (today) if the end-of-year inflows are estimated to be $100,000 each year for 4 years, whem the cost of capital is 11% ? That is, find-CF for this project when the WACC is 11% and please round your answer to the nearest whole dollar. 6. What is the IRR for a project that costs $100,000 today (CF0) and provides annual cash inflows of $30,000 for 6 years beginning one year from today