How do i find the area with this figure?

The amount of energy it takes to lift a box might be a function of which of the following

Sum of the interior angles of a pentagon

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?