for problem number 4 that should say may 10th

Unnamed 3
    1
        Date    Particulars    Debit    Credit
        Mar-01    Cash A/C    $ 10,000
             Capital A/C        $ 10,000
        Mar-03    Accounts Receivables - H Holland    $ 1,500
             Sales        $ 1,500
        Mar-05    Accounts Receivables - T Traer    $ 800
             Sales        $ 800
        Mar-13    Cash    $ 1,485
            Cash Discount    $ 15
             Accounts Receivables - H Holland        $ 1,500
        Mar-14    Sales Return    $ 100
             Cash Memo        $ 100
        Mar-15    Cash    $ 686
            Cash Discount    $ 14
             Accounts Receivables - T Traer        $ 700
    2
            HIP HOP CORP
            Schedule of Accounts Payable
            May 31 200x
            Creditor    Amount
            Dr Dreye    $ 3,000
            Jay Z Corp    $ 2,000
            Shaggy $ Co.    $ 6,300
            General Accounts Payable    $ 11,300
            Total Accounts Payable    $ 22,600
Unnamed 1
    3A
        Sales    $ 2,600
        Sales Discount    $ 10
        Sales R&A    $ 30
        Beginning inventory    $ 22
        Net purchase    $ 2,100
        Ending Inventory    $ 32
        Operating Expenses    $ 200
    a.     Net Sales = ?
        Net Sales = Sales - Sales Discounts - Sales R&A
        Sales    $ 2,600
        Sales Discount    $ 10
        Sales R&A    $ 30
        Net Sales    $ 2,560
    b.    Cost of goods sold = ?
        Cost of goods sold = Beginning inventory + Net Purchases - Ending Inventory
        Beginning inventory    $ 22
        Net purchase    $ 2,100
        Ending Inventory    $ ...