Claire Cosmetics maintains a profit margin of $6\%$ and a total asset turnover ratio of $2.$ a$.$ Calculate the ROA for the firm. b$.$ If its debt$-$equity ratio is $40,$ long$-$term debt is $$10,000,$ its interest payments and taxes are each $$6,000,$ and EBIT is $$24,000,$ what is its ROE? c$.$ Calculate and discuss ratios that show Claires ability to meet the interest payments.