Compute and Interpret Liquidity, Solvency and Coverage Ratios Selected balance sheet and income statement information for Calpine Corporation for 2004 and 2006 follows.

($ millions)	2004	2006
Cash	$ 1,476.73	$ 1,502.36
Accounts receivable	1,097.16	735.30
Current assets	3,363.56	2,843.33
Current liabilities	3,285.39	6,057.95
Long-term debt	16700.81	3,621.63
Short-term debt	1,033.96	4,568.83
Total liabilities	22,658.42	25,653.17
Interest expense	1,516.90	1,288.29
Capital expenditures	1,545.48	311.50
Equity	4,587.67	(7,152.90)
Cash from operations	227.89	165.98
Earnings before interest and taxes	1,589.84	1,917.84

(a) Compute the following liquidity, solvency and coverage ratios for both years. (Round your answers to two decimal places.)

2006 total debt-to-equity = Answer 2004 total debt-to-equity = Answer 2006 free operating cash flow to total debt = Answer 2004 free operating cash flow to total debt = Answer (