Braylon bought a used cell phone from his friend for $465 less than its retail price. he paid a total of $100 for the cell phone. what was the retail price of the cell phone?

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?