Help me solve this question, please!

Using the DuPont method, evaluate the effects of the following relationships for the Lollar Corporation. a. Lollar Corporation has a profit margin of 4.5 percent and its ROA (investment) is 15.00 percent. What is its asset turnover? (Do not round intermediate calculations. Round the final answer to 2 decimal places.) Asset turnover ratio x b. If Lollar Corporation has a debttototalassets ratio of 45 percent, what would the firm's ROE be? (Do not round intermediate calculations. Round the final answer to 2 decimal places.) Return on equity |:| % c. What would be the ROE, if the debttototaIassets ratio decreased to 40 percent? (Do not round intermediate calculations. Round the final answer to 2 decimal places.) Return on equity |:| %