There are three times as many girls as boys in the spanish club passaic county high school .if, there are 36 members in the club, how many of them are a) ) ) )

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?