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 Inventory Property, plant, and equipment (net) Total assets Liabilities and Shareholders' Equity Current liabilities Long-term liabilities Paid-in capital Retained earnings Total liabilities and shareholders' equity $ 250 200 250 350 1,500 $ 2,550 $ 450 400 1,000 700 $ 2,550 The company's 2021 income statement reported the following amounts ($ in thousands): $5,100 80 Net sales Interest expense Income tax expense Net income 150 210 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.)