Answer
$\$21,342.95$
Work Step by Step
The depriciation can be calculated as:
$FV=PV\times (1-r)^{t}$
Here, the present value is $PV=\$40,000$
The depriciation rate is $r=5.1\%$
The number of periods is $12$ (9 years corresponds to 12 nine-month periods.)
Therefore the future value is:
$FV=PV\times (1-r)^{t}=40,000\times (1-0.051)^{12}\approx 21,342.95$
