Which of the following sets is not finite? { x | x is a natural number less than 10}
{ x | x is an integer that is less than 0}
{ x | x is a whole number between 0 and 10}

What are “like terms”? why can we only add like terms?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Using elimination, what is -4x+2y=-12 4x+8y=-24