Last year, Dell had sales of $57 billion, cost of goods sold of $46 billion, and the following end of year balance sheet (in billions): Assets $ Liability and Equity $ Cash 9.0 Account payable 6.0 Account Receivables 7.5 Notes payable Inventory 0.5 Accrued items 7.5 Total current assets 17.0 Total Current liabilities 16.0 2.5 Net plan, Property & Equipment 6.0 Long term debt Common Equity Total Liabilities & Equity 3.0 4.0 23.0 Total Assets 23.0 a) How much does Dell have invested in working capital? b) How long is Dell's cash cycle? c) If Dell had the industry average inventory days of 30, what would the cash cycle be? (1.5 m) (7 m) (1.5 m)