In response to complaints about high prices, a grocery chain runs the following advertising campaign: If you pay your child $1 to go buy $32 worth of groceries, then your child makes about twice as much on the trip as we do. Youve collected the following information from the grocery chains financial statements:

(millions)
Sales	$	764.00
Net income		11.95
Total assets		345.00
Total debt		155.00

A. What is the childs profit margin?

B. What is the stores profit margin?

C. What is the store's ROE?