1.	Solve for n by the method of determinants.
		A.		B.
		C.		D.
		Hint
	2.	Solve by the method of determinants.
		A.	(-0.4, -0.2)	B.	(0.4, 0.2)
		C.	(-0.2, -0.4)	D.	(-0.2, 0.4)
		Hint
	3.	Which of the following cannot be true concerning solving a system of equations by determinants?
		A.	ed - bf = 0	B.
		C.		D.
		Hint
	4.	Solve by the method of determinants. Round to the nearest hundredth.
		A.	(1.68, 4.40)	B.	(2.46, 1.20)
		C.	(1.86, 2.20)	D.	(-1.86, -2.20)
		Hint
	5.	Which method of finding solutions would work best to find the solutions to the system and state why?
		A.	adding and multiplying	B.	substitution
		C.	determinants and matrices, because there are fewer calculations	D.	adding or subtracting
		Hint