Nielson Motors has a debt-equity ratio of 1.5, an equity beta of 1.8, and a debt beta of 0.4. It is currently evaluating the following projects, none of which would change Nielson's volatility. Project 1 2 3 4 5 Investment 100 75 120 60 80 NPV 23 12 18 15 14 (All amounts are in $millions.) Nielson Motors should accept those projects with profitability indices greater than (2 decimal places)