1.	Express the rate 40 students to 8 teachers as a unit rate.
		A.	5 students per teacher	B.	10 students per teacher
		C.	12 students per teacher	D.	4 students per teacher
		Hint
	2.	Express the ratio 12 inches to 2 yards in simplest form.
		A.		B.
		C.		D.
		Hint
	3.	Determine whether the triangles are similar. If not, explain why not.
		A.	no, a = 30	B.	no, b = 40
		C.	yes	D.	no, b = 110
		Hint
	4.	A staff's shadow is 8 feet and a tree's shadow is 16 feet. If the staff is 9 feet tall, how tall is the tree?
		A.	9 ft	B.	12 ft
		C.	18 ft	D.	15 ft
		Hint
	5.	In a movie, a child who was 32 inches tall was ''blown up'' to be 160 feet tall. Find the scale needed for the props in the movie.
		A.	1:160	B.	1:60
		C.	1:10	D.	1:6
		Hint
	6.	A model of a sports car is 9 inches long. If the actual car is 12 feet long, find the scale model.
		A.	1:20	B.	1:8
		C.	1:16	D.	1:12
		Hint
	7.	Find the coordinates of the image of the point A(3, 9) for a dilation with the scale factor of
		A.	A'(4.5, 13.5)	B.	A'(9, 27)
		C.	A'(6, 18)	D.	A'(2, 6)
		Hint
	8.	If 1 yard is equal to 36 inches, then 15 yards equals c inches. Solve for c.
		A.	c = 540 inches	B.	c = 525 inches
		C.	c = 555 inches	D.	c = 570 inches
		Hint
	9.	Boxes of cereal are marked 3 for $5.00. How much will 8 boxes of cereal cost?
		A.	$16.00	B.	$9.33
		C.	$13.33	D.	$10.00
		Hint
	10.	Kim is standing next to a tree. The tree has a shadow that is 3 m long. Kim, who is 1.3 m tall, has a shadow that is 0.8 m long. How tall is the tree?
		A.	1.846 m	B.	4.875 m
		C.	3.5 m	D.	3.972 m
		Hint
	11.	What is the ordered pair of the image of A(-2, 4) if the scale factor is 5?
		A.	(3, 9)	B.	(-10, 20)
		C.	(-0.4, 0.8)	D.	(10, 20)
		Hint
	12.	A mother has graphed her baby’s growth. Find the rate of change in the weight of the baby from 3 months to 6 months.
		A.	1.25 pounds per month	B.	1.75 pounds per month
		C.	1.375 pounds per month	D.	1.5 pounds per month
		Hint
	13.	The graph shows the fuel efficiency for the light duty trucks in the United States. Find the rate of change in the fuel efficiency from 1999 to 2000.
		A.	-0.4 mpg per year	B.	0.075 mpg per year
		C.	-0.2 mpg per year	D.	0 mpg per year
		Hint
	14.	Find the slope of the line.
		A.	-	B.
		C.	4	D.	-4
		Hint
	15.	Find the slope of the line.
		A.	1	B.	-1
		C.	-	D.	0
		Hint
	16.	Triangle ABC DEF. Each side of ABC is 1 times longer than the corresponding sides of DEF. If the perimeter of ABC is 36 centimeters, what is the perimeter of DEF?
		A.	24 centimeters	B.	12 centimeters
		C.	18 centimeters	D.	54 centimeters
		Hint