A firm has a net profit margin of 25 percent on sales of $20,000,000. If the firm has total liabilities of $7,500,000, total assets of $22,500,000, and an after-tax interest cost on total debt of 7 percent, what is the firm's ROE? Between 0.30 and 0.40 Cannot be determined with this information Greater than 0.40 Between 0.20 and 030 Less than 0.20