$9\mathrm{.}7$ El Dorado Machinery Company purchased a delivery truck at a cost of $$28,000$

on March $10,2018.$ The truck has a useful life of $10$ years with an estimated sal$-$

vage value of $$3,000.$ Compute the annual depreciation for the first two years

using

$($a$)$ The straight$-$line method.

$($b$)$ The $150\%$ declining$-$balance method.

Answer:

a$)2500$ for $n=0$

to $10$

b$)D1=4200$

$D2=3750$