A public-private initiative in Texas will significantly expand the wind-generated energy through- out the state. The cash flow for one phase of the project involving Central Point Energy, a trans- mission utility company, is shown. Given reinvestment rate of 18% per year for excess funds and 10 % per year for borrowing rate for extra funds, determine: given MARR - 15% Year Net cash flow +48000 1 +20000 -90000 +50000 -10000 5000 a) How many number of ROR values is expected and why? b) Calculate the external rate of return (MIRR). c) Is the project economically viable