The following selected data were taken from the financial statements of Vidahill Inc. for December 31, 20Y7, 20Y6, and 20Y5: December 31 December 31 December 31 2017 20Y6 20Y5 Total assets $332,000 $299,000 $266,000 Notes payable (8% interest) 110,000 110,000 110,000 Common stock 44,000 44,000 44,000 Preferred 3% stock, $100 par (no change during year) Retained earnings 22,000 127,720 22,000 82,590 22,000 66,000 The 20Y7 net income was $45,790, and the 20Y6 net income was $17,250. No dividends on common stock were declared between 20Y5 and 20Y7. 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 20Y6 and 20Y7. When required, round your answers to one decimal place. 20Y7 20Y6 % % Return on total assets Return on stockholders' equity % % Return on common stockholders' equity 30.3 % %