Problem 7 (10 points). Net Present Value and Profitability For this problem you will need to calculate the net present value and profitability index related to investment in one of two mutually exclusive pieces of equipment with both even and uneven cash ows. Study the section of Net Present Wine in Chapter 4, paying particular attention to the Exhibits in that section. Reworking Problem 4-1 at the end of that chapter will also be helpful