Answer and Explanation:
The adjusting entries are shown below:
1. Interest expense [$11,400 × 9% × 4 ÷ 12] $342
To Interest payable $342
(being accrued interest expense is recorded)
2. Supplies expense [$2,200 - $820] $1,380
To Supplies $1,380
[Being supplies expense is recorded]
3. Depreciation expense $1,200
To Accumulated depreciation-Equipment $1,200
[Being depreciation expense is recorded]
4 Insurance expense [$3,960 × 7 ÷ 12] $2,310
To Prepaid insurance $2,310
[being insurance expense is recorded]
5 Unearned service revenue $7,000
To Service revenue $7,000
[Being revenue from unearned is recorded]
6 Accounts receivable $4,200
To Service revenue $4,200
[Being accrued service revenue is recorded]
7 Salaries expense [$5,400 × 3 ÷ 5] $3,240
To Salaries payable $3,240
[being accrued salaries expense is recorded]