Close beginning inventory, purchase, purchase discount, in addition to ending inventory?

I've submitted my work to my professor, and she left me a few comments in red, I was able to fix most of them but I don't know how to close beginning inventory, purchase, purchase discount, in addition to ending inventory? Thanks for any help in advance!

Here's the list of transaction:

The 2013 balance sheet of the Captain Jet Inc. is attached. During 2014, the following events occurred.

1. On January 10, sell merchandise on account to Rayms $9,600 and Fischer $8,800. Terms 2/10, n/30. Freight $100 for each sale, F.O.B. shipping point.

2. On January 12, purchase merchandise on account from Zapfel $3,000 and Liotta $2,400. Terms 1/10, n/30. Freight $120 for each sale, F.O.B. destination.

3. Receive checks, $4,000 from Longhini and $2,000 from Hall, for sales on account after discount period has lapsed.

4. On January 15, send checks to Joosten for 9,000 less 2% cash discount, and to Maida for $11,000 less 1% cash discount.

5. On January 16, issue credit of $400 to Fieber for merchandise returned.

6. Summary daily cash sales total $15,500.

7. On January 21, pay off the balances to Zapfel and Liotta for the purchases on January 12.

8. On Feburary 9, receive payment in full from Rayms and Fischer.

9. On March 1, pay rent of $6,000 for a two-year term.

10. On April 1, sell merchandise on account to Dunlap $1,600, term 2/10, n/30. Freight $80, F.O.B. shipping point.

11. Pay $400 cash for office supplies.

12. Cash dividends totaling $800 are declared on June 13 and paid to stockholders on June 23.

13. Issue a note of $120,000 to bank (one year, annual interest rate 3%) for cash.

14. On July 5, purchase merchandise from Maida $33,000, terms 3/10, n/30.

15. On July 7, issue common stock 1000 shares, $10 par, in exchange of a land with a fair market value of $15,000.

16. On July 8, return $200 of merchandise to Maida and receive credit.

17. On August 1, sell merchandise to Lachey on account $80,000, term 1/10, n/30. Freight $1,500, F.O.B. shipping point.

18. Pay off the balance to Maida on August 4.

19. On August 10, receive half of the payment from Lachey.

20. On August 14, write off $1,300 bad debt for one account, Tooket.

21. Pay utitlities expense, $10,902.

22. On August 1, Lachey pays off its balance.

23. On September 1, pay cash $7,500 to Farmington for merchandise purchased last year.

24. On October 1, pay off notes payable $110,000 and associated accrued interest $6,000, of which $1,500 was shown on the balance sheet.

25. Over the year, sales and office employees earned $45,500 in salaries and wages, of which $1,500 was still payable at the end of year.

26. An unpaid utilities bill (December, $1,250) is due on January 10 next year.

Additional Information at the end of the year:

1. Depreciation expense for the year was $14,250.

2. The company estimated that it has to pay federal income tax, $3,250.

3. After physically counting, the company decided that the ending inventories worth $40,146.

4. Based on its historical data, the company estimated that the bad debts were about 1% of net credit sales.

5. Unearned revenue is decreased by $10,000.

6. The company expenses all of the supplies purchased during the year.

7. No insurance policy is effective during the year.

8. The company used the gross method to record its purchases and sales on credit.

9. The company adopts the periodic inventory system.

1 GENERAL JOURNAL ENTRIES 2 Transaction 1 3 Accounts Receivable ADJUSTING JOURNAL ENTRIES ADJ. JE 1 Rent Expenses 18,400 2,500 Sales Revenues 18,400 Prepaid Rent 2,500 6 Transaction 2 7 Merchandise 8 9 use "purchase" account 10 Transaction 3 11 Cash 12 13 14 Transaction 4 15 Accounts payable 16 17 18 19 Transaction5 20 Sales return 21 5,400 Depreciation Expense 14,250 Accounts payable 5,400 Accumulated depreciation $14,250 6,000 Federal income tax expense 3,250 Accounts Receivable 6,000 Federal income tax payable 3,250 20,000 Purchase discounts Cash 290 19,710 Bad debt Expense 996 Allowance for doubtful accounts 996 400 Unearned Revenue Revenue 10,000 Accounts receivable 400 10,000 23 Transaction 6 24 Cash 25 26 15,500 Ending inventories 40,146 Sales revenue 15,500 Cost of goods sold 40,146 In this JE you need to close beginning inventory, purchase, purchase discount, purchase returns, in addition to ending inv