15 . The Purple Martin has annual sales of $ 4,600 , total debt of $ 1,230 , total equity of $ 2,500 , and a profit margin of 6 percent . What is the return on assets ? 16 . Galaxy United , Inc . 2009 Income Statement 17 . Reliable Cars has sales of $ 3,850 , total assets of $ 3,350 , and a profit margin of 5 percent . The firm has a total debt ratio of 41 percent . What is the return on equity ? 18 . A firm has net working capital of $ 344 , net fixed assets of $ 2,292 , sales of $ 6,000 , and current liabilities of $ 800 . How many dollars worth of sales are generated from every $ 1 in total assets ? 19 . One of the primary weaknesses of many financial planning models is that they : ignore the goals and objectives of senior management . 20 . The external funds needed ( EFN ) equation projects the addition to retained earnings as : 21 . Which account is least apt to vary directly with sales ? accounts payable inventory 22 . The Wintergrass Company has an ROE of 15.1 percent and a payout ratio of 40 percent . What is the company ’ s sustainable growth rate ? ( Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places , e . g ., 32.16 .) 23 . If the Hunter Corp . has an ROE of 7 and a payout ratio of 15 percent , what is its sustainable growth rate ?( Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places , e . g ., 32.16 .) 24 . The length of time between the acquisition of inventory and its sale is called the : operating cycle . 25 . The most common means of financing a temporary cash deficit is a : long-term secured bank loan . long-term unsecured bank loan . short-term secured bank loan . short-term issue of corporate bonds . short-term unsecured bank loan .