The 2021 balance sheet for Hallbrook Industries, Inc., is shown below. HALLBROOK INDUSTRIES, INC. Balance Sheet December 31, 2021 ($ in thousands) Assets Cash Short-term investments Accounts receivable $ 200 150 200 Inventory Property, plant, and equipment (net) Total assets 350 1,000 $1,900 Liabilities and Shareholders' Equity Current liabilities $ 400 Long-term liabilities 350 Paid-in capital 750 Retained earnings 400 Total liabilities and shareholders' equity $ 1,900 The company's 2021 income statement reported the following amounts ($ in thousands): Net sales Interest expense Net income $4,600 40 Income tax expense 100 160 Required: 1. Calculate the current ratio. (Round your answer to 2 decimal places.) 2. Calculate the acid-test ratio. (Round your answer to 3 decimal places.) 3. Calculate the debt to equity ratio. (Round your answer to 2 decimal places.) 4. Calculate the times interest earned ratio. (Round your answer to 1 decimal place.)