Answer:
a. Suppose a firm's total assets turnover ratio falls from 1.0 to 0.9, but at the same time its profit margin rises from 9% to 10% and its debt decreases from 60% of total assets to 40%. Under these conditions, the ROE will increase.
Explanation:
Asset turnover ratio of a firm is sales divided by total assets. If this ratio falls the revenue of the firm has declined, but since the profit margin has increased means company has made efforts to cut down its expenses and cost. If the debt has decreased then its equity portion will increase resulting in ROE to increase.