1.	Lines s and t are parallel and r is a transversal. Find the measure of5 if m2 = 72.
		A.	108	B.	36
		C.	72	D.	18
		Hint
	2.	Classify9 and15.
		A.	alternate exterior angles	B.	consecutive interior angles
		C.	corresponding angles	D.	alternate interior angles
		Hint
	3.	In the figure, g || h and a is a transversal. If what is the value of n?
		A.	7.5	B.	18
		C.	12	D.	15
		Hint
	4.	If m7 = 3x - 15 and m3 = 2x + 7, find m3.
		A.	66	B.	129
		C.	22	D.	51
		Hint
	5.	If m10 = 3n + 20 and m7 = 7n - 52, find m9.
		A.	106	B.	72
		C.	74	D.	18
		Hint