6.     factor the common factor out of 8x3  + 12x.                a.  4x(6x2  + 3)      b.  x(x2  + 3)      c.  4x(2x2  + 3)      d.  4x2(2x3  + 3) 

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?