1) Evaluate a combined cycle power plant on the basis of the present worth method when the MARR is 12% per year. Pertinent cost data are as follows: (25 points) Investment cost Useful life Power Plant (thousands of S) $15,000 15 years Market value (EOY 15) Annual operating expenses $2,500 $800 Overhaul cost-end of 5th year $150 Overhaul cost-end of 10th year $460