Clean Air Systems recently reported $10,000 of sales, $8,500 of operating costs other than depreciation, and $900 of depreciation. The company had no amortization charges, it had $4,000 of outstanding bonds that carry an 8.00% interest rate, and its federal-plus-state income tax rate was 25%. In order to sustain its operations and thus generate sales and cash flows in the future, the firm was required to spend $1,000 to buy new fixed assets and to invest $400 in net operating working capital. How much free cash flow did Clean Air generate? O $75.00 O-$75.00 O $50.00 0-$50.00