Write an algebraic expression for the phrase. 5 times the sum of p and r 5p + r 5pr 5(p + r) 5 + p + r

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?