Evaluate the limit. 7-2n/5n
a. 1
b. 9/5
c. -2/5
d. limit does not exsist

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?