Nightwish Corporation shows the following information on its 2021 income statement Sales =$242,000, Costs =$153,000, Other expenses $7,900; Depreciation expense = $17,700, Interest expense =$14,100, Taxes =$17,255, Dividends =$11,000 in addition, you're told that the firm issued $5,600 in new equity during 2021 and redeemed $4,100 in outstanding long-term debt. (Do not round intermediate colculations.) 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 fored assets increased by $22,000 during the year, what was the addition to net working capital (NWC)