The total number of eggs, T, collected in one day from a chicken coop is proportional to the number of chickens, C, in the coop. If each chicken laid the same number of eggs, 4, which equation could be used to find the total number of eggs collected from the coop?

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?