The 2018 balance sheet for Hallbrook Industries, Inc., is shown below.

HALLBROOK INDUSTRIES, INC.

Balance Sheet

December 31, 2018

($ in thousands)

Assets

Cash .............................................................................$ 200

Short-term investments ....................................................... 150

Accounts receivable ........................................................... 200

Inventories ..................................................................... 350

Property, plant, and equipment (net) ........................................1,000

Total assets ..................................................................... $ 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 2018 income statement reported the following amounts ($ in thousands):

Net sales ...................................................... $4,600

Interest expense ............................................. 40

Income tax expense .........................................100

Net income ...................................................160

Required:

Determine the following ratios for 2018:

1. Current ratio

2. Acid-test ratio

3. Debt to equity ratio

4. Times interest earned ratio