HELP ME IT IS URGENT

What is the solution of log2  (3x  -  7)  =  3? 4 5

Given abc find the values of x and y. in your final answer, include all of your calculations.

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?