Last year Martin Motors reported the following income statement: sales of $12,000,000, cost of goods sold is $7,000,000, interest expense of $500,000, preferred stock dividend of $200,000, common stock dividend of $650,000, depreciation of $2,000,000, and other administrative expense of $800,000. In addition, capital expenditures were $4,000,000 and net operating working capital increased by $2,200,000. The tax rate was 40%. a. According to the book what is another name for operating income? b. Find operating income for last year (remember there is another name for this). c. Find free cash flow for last year