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Determine the net present value of the following set of cash flows. Assume the discount rate is 9% 1. -t=0 +$250 t=3 +$200 t4 $100 t-7 +$600 -t-10-$400 Maggie Green just borrowed $5,000. She is planning to pay it back in 5 equal installments of $1,200. What is the IRR? 2. 3. Rick Grimes and Daryl Dixon are evaluating an investment in a hydraulic press for a stamping operation. The initial cost of the press is $400,000 and is expected to have a useful life of 10 years. Maintenance costs will be $20,000 per year. The hydraulic press will also increase stamping output and reduce labour; saving the company $10,000 in the first year, $30,000 in year 2, and $75,000 in each subsequent year. The equipment has a salvage value of $15,000. If the company's MARR is 15%, should the partners recommend this project go ahead? 4. In question 3, would the recommendation change if the yearly savings were determined to be 25% higher? 5. Winterfell Tool and Die may buy a new milling machine. The engineer has determined the following data Initial cost Operating cost/yr Savings/yr Useful life Salvage value $15,500 $7,300 $11,600 S years Nil What is the IRR of this investment? If Winterfell has a MARR of 8%, should this project go forward