1.	A history teacher has a stack of four different books. How many ways can these books be stacked?
		A.	4	B.	12
		C.	24	D.	48
		Hint
	2.	Find the value of P(9, 3).
		A.	84	B.	729
		C.	504	D.	3,024
		Hint
	3.	How many different ways can you arrange the letters in the word compare?
		A.	5!	B.	4!
		C.	7!	D.	6!
		Hint
	4.	A race consists of ten runners. How many ways can the runners finish first, second, and third?
		A.	1,000	B.	504
		C.	720	D.	30
		Hint
	5.	There are 9 players on a softball team. How many ways can the coach pick the first 5 batters?
		A.	45	B.	3,024
		C.	15,120	D.	60,480
		Hint