Explanation:
The closing journal entries are as follows
1. Sales Revenue A/c Dr $57,330
 Rent Revenue A/c Dr $470
         To Income Summary $57,800
(Being revenue account closed)
2. Income summary A/c Dr $49,320
     To Depreciation expense A/c $3,000
     To Salaries and Wages Expense A/c $25,000
     To Utilities Expense A/c $5,920
     To Insurance Expense A/c $3,100
     To Rent Expense $7,700
     To Income tax expense A/c $4,600
(Being expenses accounts are closed)
3. Income summary A/c Dr $8,480 Â ($57,800 - $49,320)
      To Retained earning A/c $8,480
(Being the difference is credited to retained earning)
4. Retained earnings A/c Dr $470
          To Dividend A/c $470
(Being dividend account is closed)
For all other account, no journal entries  are required