1.	The number of calories for a serving of different brands of potato chips and tortilla chips is shown in the back-to-back stem-and-leaf plot below. Which statement is correct?
		A.	Most of the potato chip brands have less than 150 calories per serving.
		B.	Most of the tortilla chip brands have less than 150 calories per serving.
		C.	The data for potato chips and the data for tortilla chips have the same mode(s).
		D.	Potato chips and tortilla chips both have the same mean number of calories.
		Hint
	2.	What is the difference between the highest and the lowest values?
		A.	80	B.	75
		C.	84	D.	100
		Hint
	3.	Simplify 6a + 15a.
		A.	21a	B.	21a2
		C.	6a + 15a	D.	42a
		Hint
	4.	Simplify 2a4 + 4a2 + a4.
		A.	3a8 + 4a2	B.	3a4 + 4a2
		C.	2a4 + 4a2 + a4	D.	7a10
		Hint
	5.	Write an algebraic expression for one-half of a number x subtracted from fifty.
		A.	50 - 2x	B.	2x - 50
		C.		D.
		Hint
	6.	Find the area of the figure if a = 3 and b = 5.
		A.	16 square units	B.	8 square units
		C.	15 square units	D.	225 square units
		Hint
	7.	What is implied when it is said that x and y have a negative correlation?
		A.	When the value of x increases, the value of y increases.
		B.	When the value of x is negative, the value of y negative.
		C.	When the value of x increases, the value of y decreases.
		D.	When the value of x increases, the value of y does not necessarily increase or decrease.
		Hint
	8.	Which relationship would most likely have a positive correlation?
		A.	the number of tickets sold for a baseball game, and the number of hotdogs sold at the game.
		B.	the rate at which a train travels, and the time it takes for it to reach its destination.
		C.	the amount of memory in computer, and the number of keys on the keyboard.
		D.	the number of miles driven, and the number of gallons of gas in the car.
		Hint
	9.	Express 47.5 × 10-5 in scientific notation.
		A.	4.75 × 10-4	B.	475 × 10-6
		C.	0.475 × 10-3	D.	4.75 × 10-6
		Hint
	10.	Write an algebraic expression for the verbal expression. the sum of 4 and one half of the number x
		A.	4 + x	B.	4 + ÷ x
		C.	4 - ÷ x	D.	4 - x
		Hint
	11.	Use the Distributive Property to simplify 7(6x2 + 5x + 4).
		A.	42x2 +35x + 21	B.	42x2 + 5x + 4
		C.	42x2 + 35x + 28	D.	42x2 + 35x + 4
		Hint
	12.	How many measurement classes are represented on the histogram?
		A.	9	B.	14
		C.	44	D.	70
		Hint
	13.	A histogram is a graph in which the data are organized into equal _______.
		A.	elements	B.	tallies
		C.	intervals	D.	bars
		Hint
	14.	A baseball owner is trying to convince people that he is spending too much on his players. He is paying 10 of them $1 million, 8 of them $2 million, and 3 of them $15 million. To support his case, which measure of central tendency should he use?
		A.	mode	B.	standard deviation
		C.	median	D.	mean
		Hint
	15.	Using the box-and-whisker plot, what is the median of Exam B?
		A.	75	B.	90
		C.	83	D.	60
		Hint
	16.	Using the box-and-whisker plot, what is the first quartile of Exam B?
		A.	63	B.	83
		C.	75	D.	72
		Hint
	17.	Why is the graph misleading?
		A.	Months are out of order.	B.	Color is misleading.
		C.	Scale is not at even intervals.	D.	Bars appear to have cut in half.
		Hint
	18.	Translate the phrase the sum of negative four times a number and eighteen into a variable expression.
		A.	-4(y + 18)	B.	-4 + 18y
		C.	-14(y + 18)	D.	-4y + 18
		Hint
	19.	Simplify –3m(–4n + 8)
		A.	–12mn – 24m	B.	12mn – 8
		C.	–12mn – 24	D.	12mn – 24m
		Hint
	20.	Simplify 4(6m - 2n) - 2(2m - 6n).
		A.	24m - 20n	B.	20m + 4n
		C.	20m - 4n	D.	28m - 20n
		Hint