There are 4 red balls, 6 white balls, and 3 blue balls in a bag. if one ball is drawn from the bag at random, what is the probability that it is not white?

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?