Ellen drew a graph showing the solution to an inequality. A number line going from negative 1.25 to positive 0.75. An open circle is at negative 0.75. Everything to the left of the circle is shaded. Then she wrote four possible inequalities. 3.25 less-than 2.5 + r 3.25 greater-than 2.5 + r Negative 3.25 less-than negative 2.5 + r Negative 3.25 greater-than negative 2.5 + r Which inequality does Ellen’s graph show the solution to? 3.25 less-than 2.5 + r 3.25 greater-than 2.5 + r Negative 3.25 less-than negative 2.5 + r Negative 3.25 greater-than negative 2.5 + r

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Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.