Best Buy reported the following numbers (in millions) for the years ending February 1,2020 , and January 30 , 2021. a. What are the internal and sustainable growth rates? Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. b. What are the internal and sustainable growth rates using ROEb and ROAb and the end of period equity (assets)? Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. c. What are the growth rates if you use the beginning of period equity (assets) in this equation? Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16