1.	Solve .
		A.	-1	B.	0
		C.	no real solution	D.	5
		Hint
	2.	Solve .
		A.	-1	B.	-4
		C.	no real solution	D.	-4, -1
		Hint
	3.	Solve .
		A.	-1, 3	B.	3
		C.	-1	D.	1, 3
		Hint
	4.	Solve.
		A.	–1	B.	1
		C.	no solution	D.	{1, –1}
		Hint
	5.	Suppose the formula represents the relationship between a plane's length L and the pounds P its wings can lift, where k is a constant of proportionality calculated for a plane. If a plane must be able to support 300,000 pounds and its wings are 180 feet, what is the value of k?
		A.	0.108	B.	0.573
		C.	0.0006	D.	0.0245
		Hint