Sales Cost of goods sold Gross margin Operating expenses Operating income Interest expense Income before income taxes Income-tax expense Net income For the Year Ended December 31, 20x0 (in thousands) Living History Travel Guides, Inc. $1,190 690 $ 500 250 $ 250 50 $ 200 100 $ 100 Balance Sheet December 31, 20x0 (in thousands) Assets Liabilities and Stockholders' Equity Cash $ 100 Accounts payable $ 120 Marketable securities 150 Short-term note payable 180 Accounts receivable (net of $15 Accrued liabilities 100 allowance for uncollectible accounts) 200 Bonds payable 400 Inventories. 400 Preferred stock. 200 Prepaid expenses 50 Common stock 200 Property, plant, and equipment (net of Additional paid-in capital 100 $220 accumulated depreciation) 530 Retained earnings... 200 Patents 70 Total liabilities and stockholders' equity $1,500 Total assets $1,500 Additional Information Gross accounts receivable amounted to $200,000, and the allowance for uncollectible accounts was $20,000 as of January 1, 20x0. Total assets amounted to $1,300,000, and common stockholders' equity amounted to $300,000 on January 1, 20x0. The liquidation value of the preferred stock is equal to par value. Preferred dividends are paid at the rate of 8 percent. The company's income tax rate was 50 percent. Required: Compute the following ratios. 1. Current ratio on December 31, 20x0. 2. Debt-equity ratio on December 31, 20x0. 3. Return on assets for 20x0. 4. Return on equity for 20x0. 5. Interest coverage for 20x0. 6. Average collection period in 20x0. (Assume that all sales were on account.)