1.	Which statement illustrates the commutative property of addition?
		A.	(5 + 3) + 6 = 8 + 6	B.	(5 + 3) + 6 = 14
		C.	(5 + 3) + 6 = 5 + (3 + 6)	D.	(5 + 3) + 6 = (3 + 5) + 6
		Hint
	2.	Simplify 3 + 2(xy+ 3z) + 4xy.
		A.	5xy + 3z + 3	B.	6xy + 3z + 3
		C.	9xy + 15z	D.	6xy + 6z + 3
		Hint
	3.	Use the graph below to determine if the given system of equations has one solution, no solution, or infinitely many solutions. If the system has one solution, name it.
		A.	infinitely many solutions	B.	one solution at .
		C.	no solution	D.	one solution at (-6, 0)
		Hint
	4.	Which system of equations is graphed below?
		A.		B.
		C.		D.
		Hint
	5.	Graph the system of equations to determine whether it has no solution, infinitely many solutions, or one solution. If the system has one solution, name it. 2x - y = 4 x + 2 y = 2
		A.	no solution	B.	one solution at (0, 2)
		C.	one solution at (2, 0)	D.	infinitely many solutions
		Hint
	6.	Use substitution to solve the system of equations given below. y = 2x 5x - y = -24
		A.	no solution	B.	(-4, -8)
		C.	(-8, -16)	D.	infinitely many solutions
		Hint
	7.	Use elimination to solve the system of equations shown below. 2x - 4y = -5 3x + 4y = -15
		A.		B.
		C.		D.
		Hint
	8.	Select the linear equation.
		A.	= -2	B.	y = -5x + 1
		C.	5x2 + 2y2 = 1	D.	3xy – 2y = 7
		Hint
	9.	Use elimination to solve the system of equations given by 3x – 2y = 12 and 3x + 5y = 33.
		A.	(6, 3)	B.	infinitely many solutions
		C.	(14, 15)	D.	no solution
		Hint
	10.	Determine the best method to solve the system of equations. Then solve the system.
		A.	(0, −3)	B.	(3, 2)
		C.	(−2, −3)	D.	(2, −3)
		Hint