Answer:
Explanation:
The adjusting entries are shown below:
1. Prepaid insurance expense A/c Dr $280
             To Prepaid insurance A/c                    $280
(Being prepaid insurance is adjusted)
2. Supplies expense A/c Dr $3,005 ($3,970 - $965)
          To Supplies A/c                       $3,005
(Being supplies adjusted)
3. Depreciation Expense A/c Dr $190
           To Accumulated depreciation     $190
(Being depreciation expense is adjusted)
4. Unearned service revenue A/c Dr $4,680  ($11,700 × 2 ÷ 5)
            To  service revenue                                $4,680
(Being unearned service is adjusted)