The blueprints of a house show that a wall is 21 feet long. If the blueprints have a map scale of 1.5 inches = 3 feet, how long is the model wall

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?