1.	Solve 3x - 9 > 21.
		A.	x > 10	B.	x < 10
		C.	x < 30	D.	x > 30
		Hint
	2.	Write an inequality for the sentence ''four less than five times a number is greater than sixteen.'' Then solve the inequality.
		A.	n > 4	B.	n > 2.5
		C.	n < 2.5	D.	n < 4
		Hint
	3.	Solve 3f + 6 > 36.
		A.	f > 10	B.	f > 30
		C.	f > 6	D.	f < 10
		Hint
	4.	Solve > -6.
		A.	w < -18	B.	w > 18
		C.	w > -18	D.	w < 18
		Hint
	5.	Solve 9 < .
		A.	45 > z	B.	-45 < z
		C.	-45 > z	D.	45 < z
		Hint