Keller Cosmetics maintains an operating profit margin of 8.45% and a sales-to-assets ratio of 3.80 . It has assets of $590,000 and equity of $390,000. Assume that interest payments are $39,000 and the tax rate is 40%. a. What is the return on assets? b. What is the return on equity? Note: For all requirement, enter your answers as a percent rounded to 2 decimal places