Accounting/Economics Help

I need answers for the following with the data above, What is the...

Operating profit margin:

Return on equity:

Net profit margin:

Return on asset:

Happy Valley Co. Selected Financial Data December 31, 20X9 Net sales Cost of goods sold Operating expenses Net income Total assets Total liabilities Cash flow from operating activities $200.000 90.000 80,000 10,000 180,000 120,000 5.000