Schwert Corp. shows the following information on its 2020 income statement sales = $244.000; costs =$160,000; other expenses =$7,900; depreciation expense =$14,900; interest expense =$14,500; taxes =$16,345; dividends =$11,500. In addition, you're told that the firm issued $6,000 in new equity during 2020 and redeemed $4,500 in outstanding long-term debt. a. What was the 2020 operating cash flow? (Do not round intermediate calculations.) b. What was the 2020 cash flow to creditors? (Do not round intermediate calculations.) c. What was the 2020 cash flow to stockholders? (Do not round intermediate calculations.) d. If net fixed assets increased by $20,000 during the year, what was the addition to NWC? (Do not round intermediate calculations.)