A project with the following costs are under consideration to determine its profitability. Using the IRR comparison and an annual MARR of 10% compounded semiannually, determine if the project should be executed. First cost $45,000 Semiannual operating cost $10,000 $20,000 $9,000 4 years Semiannual income Salvage value Life in years a. IRR = 3.4% b. IRR = 6%