1.	Estimate .
		A.	9	B.	11
		C.	8	D.	10
		Hint
	2.	Estimate the area of the triangular piece of land using Heron's formula.
		A.	10 square miles	B.	9 square miles
		C.	12 square miles	D.	11 square miles
		Hint
	3.	Estimate to the nearest whole number.
		A.	5	B.	6
		C.	4	D.	7
		Hint
	4.	The formula gives the minimum speed s of a car in miles per hour, where d is the distance in feet the car skidded after its brakes were applied and f is a drag factor that depends on the road surface. A car left skid marks for 80 feet on a dry, concrete road surface with a drag factor of 0.82. Find the minimum speed to the nearest mile per hour.
		A.	46 miles per hour	B.	48 miles per hour
		C.	42 miles per hour	D.	44 miles per hour
		Hint
	5.	Estimate .
		A.	25	B.	27
		C.	24	D.	26
		Hint