Depreciation Methods

A delivery truck costing $$22,000$ is expected to have a $$2,000$ salvage value at the end of its useful life of four years or $100,000$ miles. Assume that the truck was purchased on January $2.$ Calculate the depreciation expense for the second year using each of the following depreciation methods: $($a$)$ straight$-$line, $($b$)$ double$-$declining balance, and $($c$)$ units$-$of$-$production. $($Assume that the truck was driven $30,000$ miles in the second year.$)$ Round all answers to the nearest dollar.

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a$.$ Straight$-$lineAnswer $1$

b$.$ Double$-$declining balanceAnswer $2$

c$.$ Units$-$of$-$productionAnswer $3$