Rex Electric has decided to move into low-rise (2 to 8 floors) commercial building electrical wiring. After great success in upscale residential and small commercial wiring, they have identified four independent and indivisible investments, any or all of which will help make the move to the next level. Rex Electric's MARR is 10%. and $500.000 is available for investment immediately, with $175,000 available for follow-up investment the next year. The cash flows are shown below. Click here to access the TVM Factor Table Calculator Which alternatives should be selected by Rex Electric? Investment 1 Investment 2 Investment 3 Investment 4 What is the present worth for:he selected investment portfolio? S Carry all interim calculations to 5 decimal places and then round your final answer to the nearest dollar. The tolerance is plusminus 50. What is the IRR for the optimum portfolio? Carry all interim calculations to 5 decimal places and then round your final answer to 1 decimal place. The tolerance is plusminus0.2. Using SOLVER for sensitivity analysis: Determine the optimum portfolio and its PW using (1) the current limit on investment capital, (2) plus 20%, and (3) minus 20%. PW: S PW: S PW: S Carry all interim calculations to 5 decimal places and then round your final answer to the nearest dollar. The tolerance is plusminus 50. Again, using SOLVER for sensitivity analysis: Determine the optimum portfolio and its PW using (1) the current MARR. (2) plus 20%, and (3) minus 20%. PW: S PW: s