Exercise Preparing closing entries and a post-closing trial balance The following adjusted trial balance contains the accounts and balances of Zein Company as of December 31, 2015, the end of its fiscal year. (1) Prepare the December 31, 2015, closing entries ein Company. Assume the account number for Income Summary is 901. (2) Prepare the December 31, 2015, post-closing trial balance for Zein Company. No. Account Title Debit Credit 101 Cash $19,000 126 Supplies 13,000 128 Prepaid insurance 3,000 167 Equipment 24,000 168 Accumulated $ 7,500 depreciation Equipment 301 R. Zein, Capital 47,600 302 R. Zein, Withdrawals 7,000 404 Services revenue 44,000 612 Depreciation expense 3,000 Equipment 622 Salaries expense 22,000 637 Insurance expense 2,500 640 Rent expense 3,400 652 Supplies expense 2,200 Totals $99,100 $99,100