1.	In the expression 23, 2 is called the _____.
		A.	perfect square	B.	exponent
		C.	square root	D.	base
		Hint
	2.	The expression 3 · 3 · 3 · 3 can be written using exponents as _____.
		A.	3(4)	B.	43
		C.	34	D.	4(3)
		Hint
	3.	The expression 5 can be written using exponents as _____.
		A.	50	B.	1(5)
		C.	15	D.	51
		Hint
	4.	Write 3x3y5 as a multiplication expression.
		A.	2(3x3y5)
		B.	3 · 3 · x · 5 · y
		C.	(xy2)3
		D.	3 · x · x · x · y · y · y · y · y
		Hint
	5.	Evaluate the expression –2a3 + 3z2 if a = –3 and z = 2.
		A.	-42	B.	252
		C.	-180	D.	66
		Hint