A hotel provided the following information for year 2006: The cash flow from operating activities was $143,200, average current liabilities were $68,300, average total liabilities were $823,300, and total revenue for the year was $2,406,800. Interest was $68,000. Calculate the following ratios:

a. The cash flow from operating activities to current liabilities ratio

b. The cash flow for operating activities to total liabilities ratio

c. The cash flow from operating activities margin ratio

d. The cash flow from operating activities to interest ratio