In recent years, Sheridan Company has purchased three machines. Because of frequent employee turnover in the accounting

department, a different accountant was in charge of selecting the depreciation method for each machine, and various methods have

been used. Information concerning the machines is summarized in the table below.

For the declining$-$balance method, Sheridan Company uses the double$-$declining rate. For the units$-$of$-$activity method, total machine

hours are expected to be $35,500.$ Actual hours of use in the first $3$ years were: $2024,800$;$2025,4,200$; and $2026,5,500.$

$($a$)$

Compute the amount of accumulated depreciation on each machine at December $31,2026.$

Attempts: $0$ of $2$ used

$($b$)$

If machine $2$ was purchased on April $1$ instead of July $1,$ what would be the depreciation expense for this machine in $2024?$ In

$2025?$