1.	Solve
		A.	3	B.	3.5
		C.	2.5	D.	4
		Hint
	2.	The average human heart beats 72 times in 60 seconds. How many times does it beat in 45 seconds?
		A.	30 times	B.	54 times
		C.	84 times	D.	96 times
		Hint
	3.	Solve .
		A.	r = 20.5	B.	r = 27.1
		C.	r = 25.2	D.	r = 8.4
		Hint
	4.	In a recent survey, 336 out of 500 people chose Reallygood Cola as their favorite soft drink. If a similar survey was conducted out of 2,000 people, how many people would chose Reallygood Cola as their favorite soft drink?
		A.	1,344 people	B.	1,680 people
		C.	1,000 people	D.	672 people
		Hint
	5.	Which pair of ratios forms a proportion?
		A.	,	B.	,
		C.	,	D.	,
		Hint