Answer and Explanation:
The adjusting entries are shown below:
1. Supplies expense $460 ($620 - $160)
To supplies $460
(being supplies expense is recorded)
2. Interest receivable $310
To Interest revenue $310
(Being interest revenue is recorded)
3. wages expense $4,200
To wages payable $4,200
(Being wages expense is recorded)
4. Account receivable $1,300 (50% of $2,600)
To Service revenue $1,300
(Being service revenue is recorded)
5. Unearned revenue $660
To Service revenue $660
(Being service revenue is recorded)