Question $3(10$ Points$)$

Acme Security is considering replacing their camera security system that is working well and currently operates at break$-$even and has no market value. This system needs recalibration in $4$ years from now at the cost of $$6,000,$ which will allow it to be used for another $4$ years at no additional cost and no salvage value.

The new system being considered has the following economic data:

$\backslash$table$[[$Initial Cost:,$$21,000$