Write down mathematical model.

19 The store sells two types of non-alcoholic drinks: cola and lemonade. The income from one can of cola is 7 cents, while the income from one can of lemonade is 5 cents. On average, the store sells no more than 500 cans of both drinks per day. It is estimated that the sales volumes of cola and lemonade should be at least 2: 1. In addition, it is known that the store sells at least 100 cans of lemonade a day. How many cans of each drink should a store have at the beginning of the working day to maximize income