1.	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.	12 ft	B.	18 ft
		C.	9 ft	D.	15 ft
		Hint
	2.	Assume the triangles are similar. What is the value of x?
		A.	3.2	B.	10
		C.	5	D.	20
		Hint
	3.	A lakefront building that is 30 feet high casts a shadow on the water. How long is that shadow if a 16-foot high truck parked nearby casts an 8-foot shadow?
		A.	9 ft	B.	15 ft
		C.	12 ft	D.	13 ft
		Hint
	4.	A tower cast a 30-foot shadow. At the same time, a person who is 6 feet tall casts a 4-foot shadow. How tall is the tower?
		A.	18 feet	B.	34 feet
		C.	47 feet	D.	48 feet
		Hint
	5.	An office building casts a shadow that is 15 feet long. A nearby tree casts a shadow that is 2.5 feet long. If the tree is 5 feet tall, how tall is the office building?
		A.	7.5 feet	B.	17.5 feet
		C.	30 feet	D.	25 feet
		Hint