I am a first year accounting student having trouble correcting entries on a trial balance. My book is no help?

Trial Balance
office sales Cr. 5720
Cash Dr. 3260
Accounts Rec. Dr. 5660
Equipment Dr. 8400
Accounts Pay Cr. 4160
Capital Cr. 11560
Withdrawals Cr. 700
Wage Expence Dr. 2600
Rent Expense Dr. 940
Utilities Expense Dr. 26
Office Supplies Dr. 120
Prepaid Rent Dr. 180
The Errors:
1. 200 debit to Withdrawals was posted as credit
2. Withdrawals was listed on the trial balance as a credit
3. A Note Payable Account with a credit balance of 2,400 was not listed on the trial balance.
4. The pencil footings for Accounts Payable were debits of 5,320 and credits of 8,800
5. A debit of 180 to prepaid rent was not posted
6. Office Supplies 60 was posted as a credit to supplies.
7. A debit of 120 to accounts receivable was not posted
8. A cash payment of 420 was credited to cash 240
9. The pencil footing of the credits to Cash was overstated by 400
10) Utilites 260 was entered 26

Here's the corrected trial balance:
Debits:
Cash 3,480
Accounts Rec 5,780
Equipment 8,400
Withdrawals 1,100
Wage expense 2,600
Rent expense 940
Utilities expense 260
Office supplies 240
Prepaid rent 360
Debits total $23,160

Credits:
Office sales 5,720
Accounts Pay 3,480
Note Payable 2,400
Capital 11,560
Credits total $23,160