I really need (2) answered please I have know idea how to do the part (2) down below!!???

Presented below is the December 30 Trial balance of Cassini Studios. Debit Credit Cash................................................. $14,800 Accounts Receivable....................... 33,600 Allownance for Doubtful Accounts........ $2,160 credit Inventory, January 1.............................. 62,400 Furniture and Equipment....................... 67,200 Accumulated Depreciation -- Furniture & Equipment........................................... $26,880 credit Prepaid Insurance................................... $4,080 Notes Payable 12% interest rate............. $22,400 credit Paul Jones, Capital 12/29........................ $72,000 credit Sales ....................................................... $480,000 credit Purchases ............................................... $320,000 Sales Salaries Expense.......................... $40,000 Advertising Expense .............................. $5,360 Administrative Salaries Expense ............. $52,000 Office Expense ........................................ $4,000 (1) Prepare adjusting entries for the following items: (a) Adjust the Allownace for Doubtful Accounts to 8 percent of the accounts receivable. Remember there si a $2160 balance in the Allowance account. (b) Furniture and equipment is depreciated at 20 percent per year. (c) Insurance expired during the year, $2040. (d) 12% interest for one year has been accrued to notes payable, ($22,400*12%). (e) Salaries earne for the last two days in December, but not paid, $1920 (f) January 15, 2014 advertising has been paid in advance, $560. (g) Office supplies on hand, $1200, charged to Office Expense when purchased. (2) Prepare closing entries for Cassini after the above adjusting entries have been made. Additional information shows the inventory on December 31, was $64,000. You can summarize the revenues and expenses and close them directly to Income Summary and then close Income Summary into Paul Jones Capital account. (3) Prepare a post-closing trial balance for Cassini on December 31. Cassini Studios Trial Balance December 31, 2012 Debit Credit Cash.......................................................... Accounts Receivable ............................... Allowances for Doubtful Accounts........... Inventory, December 31......................... Furniture and Equipment........................ Accumulated Depreciation-- Furniture an Equipment Prepaid Insurance............................... Notes Payable......................................... Paul Jones, Capital on 12/31................... Sales ..................................................... Purchases ............................................... Sales Salaries Expense .......................... Advertising Expense ................................ Salaries Payable ..................................... Office Expense ........................................ Interest Payable ........................................ Office Supplies .......................................... Other ......................................................... $________ $_________