1.	Find DF if D is between E and F, ED = 6x - 4, DF = 3x + 5, and EF = 46.
		A.	26	B.	28
		C.	22	D.	20
		Hint
	2.	Find ST if S is between R and T, SR = 2x + 7, ST = x - 6, and RT = 100
		A.	99	B.	33
		C.	74	D.	27
		Hint
	3.	Find the precision for a measurement of 24 meters.
		A.	1 m	B.	5 m
		C.	0.5 m	D.	10 m
		Hint
	4.	What is an acceptable range for a measurement of 60.5 centimeters?
		A.	60.25 cm to 60.75 cm	B.	604.5 mm to 605.5 mm
		C.	60 cm to 61 cm	D.	604 mm to 606 mm
		Hint
	5.	Given that R is between S and T, SR = , and RT = , find ST.
		A.	2	B.
		C.		D.
		Hint