4. Rollerball Corporation has the following financial statements for year ending 12/31/2018.(15 points) Rollerball Corporation Income Statement in thousands) 2018 Sales 5,450 Cost of Goods Sold 3.250 Gross Profit 2,200 Depreciation 820 Operating Expenses Administration Exp. Operating Profit Interest Expense Profit Before Taxes 707 Taxes (359) Net Income Dividends 470 115 Rollerball Corporation Balance sheet (in thousands) 2017 2018 Assets Cash 100 110 Accounts Receivable 1,250 1.325 Inventory 1.125 1405 Total Current Assets 2,475 2840 Gross Fixed Asset 1650 2200 Accumulated 200 820 depreciation Net Fixed Assets 1.450 1380 Total Assets 3,925 4220 Liabilities Notes Payable Accounts Payable Total Current Liah Long Term Debt Common Stock Retained Earings Total Liab. & Earnings 850 1.550 2,400 425 400 950 1650 2600 425 400 795 4220 700 3.925 a) Calculate the free cash flow to firm for Rollerball in year 2018? (4 points)