$3)$ Katie's Garden Company purchased a machine on July $1,2019.$ The machine cost $$200,000$ and has an estimated residual value of $$20,000.$ The expected useful life is $8$ years. The machine is to be used for $100,000$ machine hours.Required:$1.$ Calculate the depreciation expense for $2019$ and $2020$ using the straight$-$line method$\mathrm{.}2.$ Calculate the depreciation expense for $2019$ and $2020$ using the units$-$of$-$production method. The machine was used for $8,000$ machine hours in $2019$ and $23,000$ machine hours in $2020\mathrm{.}3.$ Calculate the depreciation expense for $2019$ and $2020$ using the double$-$declining$-$balance method.