a)How are the changes in working capital computed?

b)How do we get the net change in cash value?

c) What is the free cash flow?

Investing Activities 31-Dec-2018 31-Mar-2019 30-Jun-201930-Sep-2019 31-Dec-2019 5-qtr trend # Capital Expenditures (2.3G) (1.76B) (1.92B) (702M) Capital Expenditures (Fixed Assets) (2.71B) (1.68B) (1.83B) (661M) Capital Expenditures (Other Assets) (83M) (77M) (90M) (41M) Net Assets from Acquisitions (69M) Sale of Fixed Assets & Businesses 5.13B 4.56B 1.36B 3.87B Purchase/Sale of Investments Purchase of Investments Sale/Maturity of Investments Other Uses 224M (968M) (1.070) Other Sources 7.91B 638M 1.42B (372M) + Net Investing Cash Flow 10.4B 3.44B (113M) 1.72B Financing Activities 31-Dec-2018 31-Mar-2019 30-Sep-2019 31-Dec-20195-qtr trend Cash Dividends Paid - Total (1.198) (58) 30-Jun-2019 (238) (236) (87M) Common Dividends (1.198) (881) (37M) Preferred Dividends Change in Capital Stock (11M) 40M (5M) Repurchase of Common & Preferred Stk. (111 Sale of Common & Preferred Stock 40M (5M) Proceeds from Stock Options 40M (5M) (4M) (311 Other Proceeds from Sale of Stock Issuance Reduction of Debt, Net (4.298) (3.27B) (1.98) (7.04) 12.21B Change in Current Debt (2.438) (448M) 12M 249M 185M Change in Long-Term Debt (1.838) (2.838) (1.918) (7.298) 12.038 Issuance of Long-Term Debt 770M 731M 731M (13M) (1.458) Reduction in Long-Term Debt (2.648) (7.288) 13.488 (2.68) (1.21B) Other Funds (3.588) (280M) (286M) (591M) (619M) Other Uses (1.218) (591M) (6191) Other Sources + Net Financing Cash Flow (6.71B) (3.61B) (2.73B) (7.75B) 12.21B Exchange Rate Effect (188M) 78M (77M) (132M) Miscellaneous Funds (2M) IM 3M Net Change in Cash 8.198 (2.948) (4.15B)