1.	Estimate 18% of 80.
		A.	42	B.	40
		C.	36	D.	16
		Hint
	2.	Estimate 33% of 32.
		A.	15	B.	11
		C.	13	D.	9
		Hint
	3.	Estimate 50% of 23.
		A.	12	B.	15
		C.	18	D.	9
		Hint
	4.	Estimate 72 out of 143 as a percent.
		A.	40%	B.	60%
		C.	50%	D.	65%
		Hint
	5.	Estimate the percent of the shaded area.
		A.	45%	B.	55%
		C.	75%	D.	65%
		Hint