A firm has $100,000 in revenue. Cost of goods sold is $45,000 and depreciation expense is $25,000. The firm has issued $100,000 in bonds that yield 6%. It has 50,000 shares of common equity outstanding that currently sell for $1.50 each. The required rate of return on the company's stock is 9%. The firm's average tax rate is 30%. What is the firm's net operating profit after taxes (NOPAT)? $21,000 $16,800 $20,000 O None of the answers listed here.