$ millions Operating assets Nonoperating assets Total assets Operating liabilities Nonoperating liabilities Total liabilities Total Oracle stockholders' equity Total revenues Operating income before tax Nonoperating expense before tax Tax expense Net income May 31, 2015 May 31, 2014 $62,090 $57,002 54,368 38,819 116,458 95,821 20,180 19,055 41,958 24,097 62,138 43,152 54,320 52,669 38,559 13,993 1,037 3,498 9,458 a. Compute return on equity (ROE) Round answer to two decimal places (ex: 0.12345 = 12.35%) 17.68 % b. Compute return on net assets (ROA) Round answers to two decimal places (percentage ex: 0.12345 = 12.35%) 8.91 % c. Compute return on net operating assets (RNOA) Round answers to two decimal places (percentage ex: 0.12345 = 12.35%) Assume a 37% statutory tax rate. 30.36 % %