Please solve a-j

Presented here are summarized data from the balance sheets and income statements of Wiper Inc.: WIPER INC. Condensed Balance Sheets December 31, 2020, 2019, 2018 (in millions) 2020 Current assets $ 685 Other assets 2,417 Total assets $3,102 Current liabilities $ 581 Long-term liabilities 1,510 Stockholders' equity 1,011 Total liabilities and stockholders' equity $3,102 2019 $ 917 1,924 $2,841 $ 816 995 1,030 $2,841 2018 $ 773 1,723 $ 2,496 $ 714 860 922 $2,496 2019 WIPER INC. Selected Income Statement and Other Data For the year Ended December 31, 2020 and 2019 (in millions) 2020 Income statement data: Sales $3,054 Operating income 300 Interest expense BB Net income 203 Other data: Average number of common shares outstanding 41.7 Total dividends paid $ 54.0 $2,917 314 69 198 47.1 $ 52.7 Required: a. Calculate return on investment, based on net income and average total assets, for 2020 and 2019. b. Calculate return on equity for 2020 and 2019. c. Calculate working capital and the current ratio for each of the past three years. d. Calculate earnings per share for 2020 and 2019. e. If Wiper's stock had a price/earnings ratio of 11 at the end of 2020, what was the market price of the stock? f. Calculate the cash dividend per share for 2020 and the dividend yield based on the market price calculated in part e. g. Calculate the dividend payout ratio for 2020. h. Assume that accounts receivable at December 31, 2020, totaled $313 million. Calculate the number of days' sales in receivables at that date. 1. Calculate Wiper's debt ratio and debt/equity ratio at December 31, 2020 and 2019. j. Calculate the times interest earned ratio for 2020 and 2019