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Analysis and Interpretation of Profitability Balance sheets and income statemente for coctrn iwhnloeala romoration follow. Costco Wholesale Corporation Consolidated Balance Sheets (S milliens, except par value and share data) September 2, 2018 September 3, 2017 Current assets Cash and cash equivalents Short-term investments Receivables, net Merchandise inventories Other current assets Total current assets Net property and equipment Other assets Total assets Current liabilities Accounts payable Accrued salaries and benefits Accrued member rewards Deferred membership lees Other current liabilities Total current liabilities Long-term debt Other liabilities Total liabilities Equity Preferred stock, 80.01 par value: Common stock, 50.01 par value: Adaitional paid in Capital Accumulated other comprehensive lass Retained earnings Totai Custco stockholders' equily Noncon wolling interests Total equity Total tiabilities and equity Combined lederd ard slake slatubory lax rate (b) Compute net operating assets (NOA) for 2018 and 2017. (c) Compute Costco's RNOA, net operating profit margin (NOPM) and net operating asset turnover (NOAT) fi (e) Compute return on equity (ROE) for 2018 . (f) Infer the nonoperating return component of ROE for 2018