can someone please explain this and provdie the correct answer. I dont understand):

6. After all adjusting entries have been made and the financial statements have been prepared at the end of the fiscal year, salaries expenses has a debit of $305,500, supplies expense has a debit of $208,000, rent expense has a debit of $95,000, insurance expense has a debit of $87,000, and revenue has a credit of $839,000. At the same date, retained earnings has a credit balance of $319,500 and dividends has a balance of $25,000. A. Journalize the entries required to complete the closing of the accounts B. Determine the balance of Retained Earnings at the end of the period