Nightwish Corporation shows the following information on its 2021 income statement: Sales = $231,000; Costs = $135,000; Other expenses = $7,900; Depreciation expense = $14,400; Interest expense = $14,300; Taxes = $20,790; Dividends = $11,500. In addition, youre told that the firm issued $5,800 in new equity during 2021 and redeemed $4,300 in outstanding long-term debt. (Do not round intermediate calculations.) a. What is the 2021 operating cash flow? b. What is the 2021 cash flow to creditors? c. What is the 2021 cash flow to stockholders? d. If net fixed assets increased by $28,000 during the year, what was the addition to net working capital (NWC)