1.	Solve 3x = 18.
		A.	6	B.	7
		C.	15	D.	21
		Hint
	2.	Angles A and B are supplementary. If = 45°, find .
		A.	75°	B.	135°
		C.	45°	D.	90°
		Hint
	3.	Solve n – 2 = 5.
		A.	–7	B.	–3
		C.	3	D.	7
		Hint
	4.	Angles A and B are complementary. If mA = 25°, what is mB?
		A.	90°	B.	65°
		C.	25°	D.	75°
		Hint
	5.	Which angle has a measure of 10°?
		A.		B.
		C.		D.
		Hint
	6.	Classify the pair of angles below.
		A.	neither	B.	supplementary
		C.	both	D.	complementary
		Hint
	7.	Solve (4x - 12) + 2x = 180.
		A.	32	B.	24
		C.	28	D.	26
		Hint
	8.	Solve 8n + 4n + 6n = 90.
		A.	10	B.	5
		C.	6	D.	9
		Hint
	9.	The angle below measures 140°. Classify the angle.
		A.	right	B.	obtuse
		C.	straight	D.	acute
		Hint
	10.	The angle below measures 40°. Classify the angle.
		A.	right	B.	straight
		C.	acute	D.	obtuse
		Hint