1.	What best describes the equation 2(4 + 6) = 20?
		A.	open	B.	true
		C.	none of these	D.	false
		Hint
	2.	What best describes the equation 14 - 2x + 10?
		A.	none of these	B.	true
		C.	open	D.	false
		Hint
	3.	What best describes the equation 4(13 - 5) = 32?
		A.	open	B.	none of these
		C.	true	D.	false
		Hint
	4.	What best describes the equation
		A.	none of these	B.	false
		C.	true	D.	open
		Hint
	5.	What best describes the equation
		A.	true	B.	none of these
		C.	false	D.	open
		Hint