In a replacement analysis for a vacuum seal on a spacecraft, the following data are known about

Question:

In a replacement analysis for a vacuum seal on a spacecraft, the following data are known about the challenger: the initial investment is $12,000; there is no annual maintenance cost for the first three years, however, it will be $2,000 in each of years four and five, and then $4,500 in the sixth year and increasing by $2,500 each year thereafter. The is $0 at all times, and is 10% per year. What is the economic life of this challenger?
Salvage Value
Salvage value is the estimated book value of an asset after depreciation is complete, based on what a company expects to receive in exchange for the asset at the end of its useful life. As such, an asset’s estimated salvage value is an important... MARR
Minimum Acceptable Rate of Return (MARR), or hurdle rate is the minimum rate of return on a project a manager or company is willing to accept before starting a project, given its risk and the opportunity cost of forgoing other...