In response to complaints about high prices, a grocery chaln runs the following odvertising campaign: "if you pay your child $1 to go buy $33 worth of groceries, then your child makes obout twice as much on the trip as we do. "You've collected the following information from the grocery chain's financial statements: a. What is the child's profit margin? Note: 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 store's proft margin? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g. 32.16. c. What is the store's ROE? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16