Recipe calls for 2/3 a cup of sugar per batch. elena used 5 1/3 cups of sugar to make multiple batches of cookies. how many batches did she make? can you show me the steps to get the answer?

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Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?