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3-17 FREE CASH FLOW Financial information for Powell Panther Cor- poration is shown here. Pw Panther Corporation Income Statements for hearinding Decadora 2021 Operating 100 150 Caming before and me 202 Caming before SM Tome 20 Tot income Powell Panther Corporation Balance sheet of December wions of dollars 2021 2020 Cash and equal $ 100 Accounts receivable 1800 100 themes 1800 2000 $3720 50D Totalcunun Nait plant and equipment 2500 Labies and Equy Accounts payable Actual 5100 720 Notes payable Totalcumentables 5200 52015 Powell Panther Corporation Balance Sheets as of December 31 millions of dollars 2021 2920 1500 1500 $3970 53515 Long timbandi Total Common stock 50 milion shares treding Common equly 50.0 2210 $275.0 56220 56300 1. What was net operating working capital for 2020 and 2017 As- sume the firm has no excess cash. 2. What was the 2021 free cash flow? 3. How would you explain the large increase in zon dividends