Amir arranges 9 photos on a built-in board he puts the photos in rose each row contains the same number of photos how many photos could be in each row

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?