You've collected the following information about Groot, Inc.: Profit margin Total asset turnover Total debt ratio Payout ratio = 4.38% = 2.90 = .38 = 23% a. What is the sustainable growth rate for the company? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What is the ROA? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a. Sustainable growth rate b. ROA