1.	Solve the equation 6 - (-8) = b.
		A.	2	B.	18
		C.	-2	D.	14
		Hint
	2.	Subtract 6 – 12.
		A.	-18	B.	-6
		C.	18	D.	6
		Hint
	3.	Find the difference –5 – (-11).
		A.	16	B.	-6
		C.	-16	D.	6
		Hint
	4.	Evaluate r – s – t if r = -5, s = -10, and t = -15.
		A.	20	B.	0
		C.	-10	D.	-30
		Hint
	5.	A submarine started at a depth of 150 feet below sea level and descended 355 feet. What is the new depth of the submarine?
		A.	205 feet	B.	0 feet
		C.	505 feet	D.	370 feet
		Hint