Profitability Ratios The following selected data were taken from the financial statements of Vidahill Inc. for December 31, 2017, 2016, and 2015: December 31 2017 2016 2015 Total assets $315,000 $284,000 $253,000 Notes payable (8% interest) 110,000 110,000 110,000 Common stock 44,000 44,000 44,000 Preferred 7% stock, $100 par 22,000 22,000 22,000 (no change during year) Retained earnings 123,435 91,050 66,000 The 2017 net income was $33,925, and the 2016 net income was $26,590. 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 2016 and 2017. Round percentages to one decimal place. Return on total assets Return on stockholders' equity 2017 2016 96 " % Return on common stockholders' equity b. The profitability ratios indicate that the company's profitability has improved Since the rate of return on total assets is G