The following is the adjusted trial balance of Sierra Company.

Sierra Company
Adjusted Trial Balance
December 31
Account Title	Debit	Credit
Cash	$ 6,400
Prepaid insurance	640
Notes receivable (due in 5 years)	5,400
Buildings	22,800
Accumulated depreciationBuildings		$ 13,400
Accounts payable		3,900
Notes payable (due in 3 years)		4,400
L. Sierra, Capital		13,300
L. Sierra, Withdrawals	1,280
Consulting revenue		10,900
Wages expense	4,900
Depreciation expenseBuildings	2,560
Insurance expense	1,920
Totals	$ 45,900	$ 45,900

Prepare its December 31 closing entries.