1.	Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
		A.	55	B.	44
		C.	45	D.	54
		Hint
	2.	In the expression (-4)2, -4 is called the ______.
		A.	power	B.	product
		C.	exponent	D.	base
		Hint
	3.	Find y for y = x2 - 15 if x = 6.
		A.	-3	B.	49
		C.	21	D.	51
		Hint
	4.	Evaluate 7(a – b)3 if a = 3 and b = 1.
		A.	56	B.	28
		C.	42	D.	8
		Hint
	5.	Evaluate x5 - 13 if x = -2.
		A.	3	B.	-23
		C.	-45	D.	19
		Hint