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 $ 200 150 Inventory Total assets Accounts receivable Property, plant, and equipment (net) Liabilities and Shareholders' Equity 200 350 1,000 $1,900 es 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 $4,600 40 Income tax expense Net income 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.)