CSX Corporation reported the following in its tax footnote to its 2016 financial statements. Use this information to answer the requirements. $ millions201620152014 Net income$1,902$2,156$2,115 Interest expense, net621586587 Average total assets35,08034,04632,418 Compute (a) return on assets and (b) the adjusted return on assets for each of the three years. Assume a statutory tax rate of 37%. Round answers to one decimal place (ex: 0.2345