A small organic food store makes two types of fruit smoothies: tropical and sport. Each tropical smoothie uses 9 oz of orange juice and 6 oz of milk. Each sport smoothie uses 3 oz of orange juice and 3 oz of milk. The store buys the orange juice in a 210 -oz container and milk in a 150 -oz container. The store sells the tropical smoothies for 4 dollars and sells the sport smoothie for 3 dollars What is the maximum in smoothie sales the store can make from 1 container each of orange juice and milk?