Premium Pet Supplies has sales of $98,400. The costs of goods sold are $55,000 and the other costs are $21,000. Depreciation is $12,000 and the tax rate is 35 percent. The firm has total assets equal to $45,066 and total liabilities equal to $13,519.00. What is the return on assets for the firm? 12% 10% 18% 15%