1.	Solve the equation |a - 1| = 7.
		A.	-6 or 8	B.	-6
		C.	-8 or 6	D.	8
		Hint
	2.	Solve the equation |z + 7| - 8 = 10.
		A.	-25	B.	-25 or 11
		C.	-9 or -5	D.	11
		Hint
	3.	A solution set that has no members is called the _______.
		A.	replacement set	B.	empty set
		C.	variable set	D.	zero set
		Hint
	4.	Solve |c + 3| – 4 = -2
		A.	-1 or -5	B.	1 or 5
		C.	-1 or 5	D.	no solution
		Hint
	5.	Solve -19 + |t| = 12
		A.	31	B.	-7
		C.	-31 or 31	D.	no solution
		Hint