not sure how to get it

The following selected data were taken from the financial statements of Vidahill Inc, for December 31, 20Y7, 20Y6, and 20Y5: The 20Y7 net income was $30,590, and the 20Y6 net income was \$18,390. No dividends on common stock were deciared between 20 and 20Y7. Preferred dividends were declared and paid in full in 20Y6 and 20y7. The 20Y7 net income was 530,590 , and the 20Y6 net income was $18,390. No dividends on common stock were declared between 20Y5 and 20Y7. Preferred dividends were declared and paid in full in 20Y6 and 20Y7. a. Determine the return on total assets, the return on stockholders' equity, and the return on common stockholders' equity for the years 20Y6 and 20Y7. When required, round your answers to one decimal place. b. The profitability ratios indicate that the company's profitability has the return on stockholders' equity in both years, there must be debt. The 20Y7 net income was $30,590, and the 20Y6, net income was \$18,390, No dividends on common stock were declared between 20Y5 and 20Y7. Preferred dividends were declared and paid in full in 20 . 6 and 20Y7. a. Determine the return on total assets, the returp on stockholders equity, and the retum on common ffockholderl equity for the years 20Y6 and 20Y7. When required, round your answers to one decimal place. b. The profitability ratios indicate that the company's profitability has Since the return on assets is the ratum on stockholders' equity in both years, there must be leverage from the use of