1.	Write an algebraic expression to represent ''the sum of 6 and three times a number squared.''
		A.	6 + 3x	B.	6(3x)
		C.	6 + 3x2	D.	6(3x)2
		Hint
	2.	Solve
		A.		B.
		C.		D.
		Hint
	3.	Solve
		A.	21	B.
		C.	28	D.
		Hint
	4.	Solve 3.6 = 2.5 + x.
		A.	6.1	B.	1.1
		C.	9	D.	1.4
		Hint
	5.	Solve 3x = –42.
		A.	–39	B.	–45
		C.	–14	D.	14
		Hint