1.	Solve k = k - .
		A.	-2	B.	2
		C.	-	D.
		Hint
	2.	Solve y - 5 = -1 + y.
		A.	-16	B.	8
		C.	16	D.	-8
		Hint
	3.	Solve 75 - 9h = -20 + 10h.
		A.	5	B.	55
		C.	-55	D.	-5
		Hint
	4.	Write an equation to find the value of x so that each pair of polygons has the same perimeter. Then solve.
		A.	2x + 4 = 3x + 9; 5	B.	4x + 8 = 3x + 9; 1
		C.	4x + 8 = 3x + 9; 3	D.	4x + 9 = 3x + 8; -1
		Hint
	5.	Write an equation to find the value of x so that each pair of regular polygons has the same perimeter. Then solve.
		A.	8x + 4 = 12x; 1	B.	8x + 1 = 12x; 1
		C.	2x + 1 = 2x; 1	D.	8x + 4 = 10x; 2
		Hint