1.	What is the value of the determinant?
		A.	-8	B.	12
		C.	-3	D.	-12
		Hint
	2.	Use Cramer's rule to find the value of n in the system of equations.
		A.		B.
		C.	-22	D.
		Hint
	3.	Determine which matrix has a determinant.
		A.		B.
		C.		D.	[1 -4 -8]
		Hint
	4.	Find the determinant of
		A.	-21	B.	-11
		C.	0	D.	-16
		Hint
	5.	Vince and Brian each need two kinds of items at the store. Vince bought 10 of item A and 14 of item B, and spent $97. Brian bought 8 of item A and 25 of item B, and spent $119. How much did each item cost?
		A.	item A = $1.14 item B = $2.10	B.	item A = $3 item B = $5.50
		C.	item A = $2.10 item B = $1.14	D.	item A = $5.50 item B = $3
		Hint