Q2) Using Descarte's and Norstrom's rules, determine the number of possible ROR values for the cashflows below. Plot PW at different i* rates to find the approximate ROR values (you may use excel, NPV command for PW). Year 0 1 2 3 4 5 6 Expenses, $ 0 -11,600 -1,100-500 -500-500 -500 Revenues, $ 5,000 1.500 1,500 2,000 2,000 2,000 2,000