1.	In the expression 18 is 20% of 90, 18 is the ____.
		A.	rate	B.	percent proportion
		C.	percentage	D.	base
		Hint
	2.	40 is what percent of 25?
		A.	160	B.	10
		C.	16	D.	62.5
		Hint
	3.	58 is 29% of what number?
		A.	200	B.	50
		C.	232	D.	168.2
		Hint
	4.	In the expression 18 is 20% of 90, 90 is the _____.
		A.	base	B.	percent proportion
		C.	percentage	D.	rate
		Hint
	5.	72 is what percent of 90?
		A.	80%	B.	5%
		C.	40%	D.	20%
		Hint