Help me i need the answer

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?

Describe the graph of 3x+2> 2 and 3x< 6

Which statement is true about the discontinuities of the function f(x) = x-5/ 3x^2-17x-28