Question: Low - energy light bulbs cost $ 6 . 5 0 , have a life o f nine years, and use about $ 2 .
Lowenergy light bulbs cost $ have a life nine years, and use about $ electricity a year, paid the end each year.
The real discount rate given effective annual rate. Assume that all cash flows are real. The inflation rate given effective annual rate.
Find the Equivalent Annual Cost the lowenergy bulbs.
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