The following selected data were taken from the financial statements of Vidahill Inc. for December 31, 2017, 2016, and 2015: December 31 2017 2046 2015 Total assets $280,000 $252,000 $224,000 Notes payable (8% interest) 90,000 90,000 90,000 Common stock 36,000 36,000 36,000 Preferred 3% stock, $100 par 18,000 18,000 18,000 (no change during year) Retained earnings 113,460 77,780 54,000 The 2017 net income was $36,220, and the 2046 net income was $24,320. No dividends on common stock were declared between 2015 and 2017. Preferred dividends were declared and paid in full in 2016 and 2017. a. Determine the return on total assets, the return on stockholders' equity, and the return on common stockholders' equity for the years 2046 and 2017. Round percentages to one decimal place. 2017 Return on total assets 2016 % % % % Return on stockholders' equity % % Return on common stockholders' equity