Answer:

a1. Dr Depreciation Expense $8,000

Cr Accumulated Depreciation $8,000

a2. $24,000

b2. December 31

Dr Wages Expenses $440

Cr Wages payable $440

Explanation:

a1. Preparation of the adjusting entry for the first year using the straight-line depreciation method.

Dr Depreciation Expense $8,000

Cr Accumulated Depreciation $8,000

($40,000/5 years)

a2. Computation of the book value at the end of the second year of the equipment's life.

First step is to calculate the First year Book value

First year Book value=$40,000/5 years

First year Book value=$8,000

Second step is to calculate the Second year Book value

Second year Book value=($40,000+$40,000)/5 years

Second year Book value=$80,000/5 years

Second year Book value=$16,000

Now let compute the book value at the end of the second year of the equipment's life.

Book value at the end of the second year=$8,000+$16,000

Book value at the end of the second year=$24,000

Therefore the Book value at the end of the second year will be $24,000

b1. Preparation of the adjusting entry on December 31

December 31

Dr Wages Expenses $440

Cr Wages payable $440

($2,200/5 years)