1.	Every proportion has two cross products which are always ______.
		A.	negative	B.	positive
		C.	zero	D.	equal
		Hint
	2.	Solve the proportion =
		A.	6	B.	80
		C.	13.5	D.	20
		Hint
	3.	When a rate is simplified so it has denominator of 1, it is called a(n) ______.
		A.	proportional ratio	B.	unit rate
		C.	equivalent analysis	D.	dimensional rate
		Hint
	4.	Convert 42 inches to feet.
		A.	7 ft	B.	504 ft
		C.	18 ft	D.	3.5 ft
		Hint
	5.	In chemistry, the smallest sample dealt with in the lab is called a mole. One mole of Carbon has a mass of 12.0 g. If you have 172.3 g of Carbon, how many moles do you have?
		A.	0.07 mole Carbon	B.	18.6 moles Carbon
		C.	14.4 moles Carbon	D.	0.12 mole Carbon
		Hint