Find C please.

Compute and Compare ROE, ROA, and RNOA Selected balance sheet and income statement information for Oracle Corporation follows. (Perform the required computations from the perspective of an Oracle shareholder. $ millions Operating assets Nonoperating assets Total assets May 31, 2015 May 31, 2014 $57,002 38,819 95,821 19,055 24,097 43,152 $62,090 54,368 116,458 Operating liabilities Nonoperating liabilities Total liabilities 20,180 41,958 62,138 Total Oracle stockholders' equity 52,669 54,320 38,559 13,993 1,037 3,498 9,458 Total revenues Operating income before tax Nonoperating expense before tax Tax expense Net income 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%) X%