Presented below are the financial statements of Crane Company. Crane Company Comparative Balance Sheets December 31 Assets 2017 2016 Cash $ 42,000 $ 24,000 Accounts receivable 24,000 16,800 Inventory 33,600 24,000 Property, plant, and equipment 72,000 93,600 Accumulated depreciation (38,400 ) (28,800 ) Total $133,200 $129,600 Liabilities and Stockholders Equity Accounts payable $ 22,800 $ 18,000 Income taxes payable 8,400 9,600 Bonds payable 20,400 39,600 Common stock 21,600 16,800 Retained earnings 60,000 45,600 Total $133,200 $129,600

a) free cash flow?