4. The following items are taken from the financial statements of the Postal Service for the year ending December 31, 2012 Accounts payable Accounts receivable Accumulated depreciation - equipment Advertising expense Cash Owner's capital (1/1/2012) Owner's drawings Depreciation expense Equipment Insurance expense Note payable, (due 30 106/2013) Patents Prepaid insurance (12-month policy) Rent expense Salaries and wages expense Service revenue Supplies Supplies expense $19,000 11,000 28,000 21,000 11,000 105,000 14,000 12,000 190,000 3,000 70,000 20,000 6,000 17,000 32,000 125,000 4,000 6,000 Calculate the following (a) Net Income (b) Owner's Capital on 31/12/12 (c) What are total liabilities and owner's equity at 31/12/ 2012