Q3: A third-year college friend of yours opened Mike's Bike Repair Shop when he was a freshman working on a sociology degree. He shared his Net Cash Flow (NCF) figure below for the 3 years, including the $18,000 amount that it took to get started in business. (a) Determine the number of possible rates of return values (ROR). (b) Write the equation that determines ROR using present worth analysis (PW) (c) Using the equation in part (b), determine the value of PW assuming an initial guess of ROR =15%. (d) Use Excel software to determine the correct value of ROR Year Net Cash Flow, $ 0 - 18,000 24,000 1 2 -5,000 4,000 3