Each child receives a meal which consists a hamburger a bag of pretzels and a drink for the children 6 -10 years old and a hamburger 2 bags of pretzel and a drink for the children that are older than 10.its cost the club 0.80 for each hamburger 0.35 for each bag of pretzel and 0.60 for each drink .calculate the cost to feed each group as well as the total cost to feed all the children