1.	Using n, find the expression for this Think of a Number trick. Think of a number. Multiply by 2. Add 4. Divide by 2. Add 6. Subtract the number you started with.
		A.
		B.
		C.
		D.
		Hint
	2.	What is the final answer to this Think of a Number trick? Think of a number. Subtract 6. Multiply by –3. Subtract 18.
		A.	the answer is 3 times the number you started with
		B.	the answer is –1.5 times the number you started with
		C.	the answer is –3 times the number you started with
		D.	the answer is 1.5 times the number you started with
		Hint
	3.	Which equation is not linear?
		A.
		B.	5x – 2y = 4.1
		C.	–3y + x – 16 + 2.9x= 0
		D.	y = –2(–8 – x) – 5x (x – 1)
		Hint
	4.	Which equation is not the same as the other three?
		A.	y + 5x = 3	B.	–5x = –y + 3
		C.	5x – y + 3 = 0	D.	y – 3 = 5x
		Hint
	5.	Which equation is not the same as the other three?
		A.		B.
		C.		D.	6 + 2y = x
		Hint