What side lengths should be used to model a rectangle
with an area of x2 + 3x - 10 square units?
x-5 and x + 2
x-2 and x + 5
x and x + 3
x + 3 and x - 10

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?