tunnel cost $280M. Every 10 years, it is repaved at a cost of $12M. Halfway between the repavings, it is resurfaced at a cost of $7M. It is rewired every 20 years at a cost of $15M. With proper mainte- nance ($20M per year), the tunnel will last forever

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Chapter1: Making Economics Decisions
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A tunnel cost $280M. Every 10 years, it is repaved at a cost of $12M. Halfway between the repavings, it is resurfaced at a cost of $7M. It is rewired every 20 years at a cost of $15M. With proper mainte- nance ($20M per year), the tunnel will last forever. If i  5%, what is the EAC for the tunnel?

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