Answer:
the depreciation expense for the year 2021 and the book value for the year 2021 is $21,600 and $32,400 respectively
Step-by-step explanation:
The computation of the depreciation expense for the year 2021 and the book value for the year 2021 under double-declining method is given below:
The depreciation expense is
= $54,000 × 1 ÷ 5 × 2
= $21,600
Now the book value is
= $54,000 - $21,600
= $32,400
hence, the depreciation expense for the year 2021 and the book value for the year 2021 is $21,600 and $32,400 respectively