(a) In using internal rate of return (IRR) for decision-making, what is the decision rule for simple investments when comparing IRR to your minimum acceptable rate of return (MARR)? [2] (b) You come up with the cash flow in the table below for a 3-year investment project, showing the third year cash-flow uncertainty. If your MARR is 12% what should be the smallest third-year cash flow? [6] Year 0 1 2 3 Cash flow, $1000 -50 20 22 ? (c) For each of the projects in the table below with an internal rate of return (IRR), determine that IRR. [10] [2] (d) Identify the simple investments and the non-simple investments. n A. $ B, $ C, $ 0 - 17,000 42,758 -65,500 1 20.000 -18.000 -12,500 N 10.000 18,000 -6,459