Answer:
a. debit Depreciation Expense $ 290
credit Accumulated Depreciation $ 290
Explanation:
The depreciation has to be calculated for the month of December i.e one month.
The annual depreciation per the question is $ 3,480 so the monthly depreciation expense is $ 290.
The depreciation expense account is debited, and the credit is to accumulated depreciation account. The equipment account is not credited directly, This is to show the costs and the accumulated depreciation separately.
The equipment on the balance sheet is shown as net of accumulated depreciation.