Rao Corporation Has the Following Balance Sheet

Rao Corporation has the following balance sheet. How much net operating working capital does the firm have? Cash $ 10 Accounts payable $ 20
Short-term investments 30 Accruals 20
Accounts receivable 50 Notes payable 50
Inventory 40 Current liabilities $ 90
Current assets $130 Long-term debt 0
Net fixed assets 100 Common equity 30
Retained earnings 50
Total assets $230 Total liab. & equity $230

A) $54.00
B) $60.00
C) $66.00
D) $72.60