6. (7 points) The following is the balance sheet for Staples for 2017. STAPLES, INC. AND SUBSIDIARIES Consolidated Balance Sheets (in millions) January 28, 2017 Cash and cash equivalents $1,137 Receivables, net 1,538 Merchandise inventories, net 1,737 Prepaid expenses and other current assets 251 Current assets of discontinued operations 568 Total current assets 5,231 Net property and equipment 1,147 Intangible assets, net 205 Goodwill 1,290 Other assets 398 Total assets $8,271 Accounts payable $1,706 Accrued expenses and other current liabilities 1,023 Debt maturing within one year 519 Current liabilities of discontinued operations 402 Total current liabilities 3,650 Long-term debt 529 Other long-term obligations 396 Common stock 1 Additional paid-in capital 5,067 Accumulated other comprehensive loss (1,053) Retained earnings 5,092 Treasury stock (5,419) Total Staples, Inc. stockholders' equity 3,688 Noncontrolling interest 8 Total stockholders’ equity 3,696 Total liabilities and stockholders' equity $8,271 Required: a. Calculate operating assets for 2017. b. Calculate operating liabilities for 2017. c. Determine net operating assets (NOA) for 2017.