How to answer question 8 with explanation please

8) (Note: a slight twist here, as all cash flows are costs... that is, negative.) In a fitness push and to help control student health care costs, UNO has asked students to use fitness trackers. A student committee must choose which ones to purchase, and the student leadership has turned to you based on your business acumen. "Abacus" trackers cost $200 upfront, then $80 per year to maintain. They will last four years. "BA2Plus" trackers will cost $400 upfront, $70 per year to maintain, and they will last nine years. Assuming the university must replace them when they wear out, which tracker is the best choice (i.e., most cost effective)? Use a T-bond rate of 3.5% to justify your answer with numbers. Hint: use the EAA methodology to solve this problem. Best choice: EAA of best choice: 9) When considering mutually exclusive projects, the project with the highest IRR should be selected, even if it has a smaller NPV. a. True b. False 10) One problem with using IRR is that under certain circumstances, multiple IRRs can be calculated. a. True b. False