1.	Write using negative exponents.
		A.	-24	B.	2-4
		C.	-2-4	D.	2-3
		Hint
	2.	Write the expression 5-4 using a positive exponent.
		A.		B.
		C.	54	D.	-54
		Hint
	3.	Write as an expression using a negative exponent.
		A.		B.	-26
		C.	2-6	D.
		Hint
	4.	Evaluate x-4 if x = 3.
		A.	-81	B.	81
		C.		D.
		Hint
	5.	Evaluate y-5 if y = -2.
		A.		B.	-32
		C.	32	D.
		Hint