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2. A Pennsylvania coal mining operation has installed an in-shaft monitoring system for oxygen tank and gear readiness for emergencies. Based on maintenance patterns for maintenance costs for the first 3 years, they increase for a time period, and then they level off. Maintenance costs are expected to be $150,000 in year 3, $180,000 in year 4, and amounts increasing by $2% per year through year 6 and remain cons with similar costs will replace the current one, determine the perpetual equivalent annual maintenance cost at i-10% per year compounded quarterly. previous systems, there are no tant thereafter for the expected 10-year life of the system. If similar systems
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