Answer and Explanation:
The adjusting entries are as follows:
1 Insurance expense Dr $310
To Prepaid Insurance $310
(Being insurance expense is recorded)
2 Supplies expense Dr $1,650 ($2,610 - $960)
To Supplies $1,650
(Being supplies expense is recorded)
3 Depreciation expense Dr $150
To Accumulated Depreciation - Equipment $150
(Being depreciation expense is recorded)
4 Unearned service revenue Dr (two-fifth of $12,000) $4,800
To Service Revenue $4,800
(Being service revenue is recorded)