The table shown below gives the estimated number of text messages sent in the U. S. by year. Approximately how many times as many text messages were sent in the U. S. in 201120112011 as in 200520052005? Year Text messages sent in U. S. 200520052005 118{,}000{,}000{,}000118,000,000,00 0118, comma, 000, comma, 000, comma, 000 200720072007 577{,}000{,}000{,}000577,000,000,00 0577, comma, 000, comma, 000, comma, 000 200920092009 1{,}198{,}000{,}000{,}0001,198,000, 000,0001, comma, 198, comma, 000, comma, 000, comma, 000 201120112011 2{,}357{,}000{,}000{,}0002,357,000, 000,0002, comma, 357, comma, 000, comma, 000, comma, 000 Choose 1 Choose 1 (Choice A) A 2\cdot10^12⋅10 1 2, dot, 10, start superscript, 1, end superscript (Choice B) B 4\cdot10^14⋅10 1 4, dot, 10, start superscript, 1, end superscript (Choice C) C 2\cdot10^32⋅10 3 2, dot, 10, cubed (Choice D) D 4\cdot10^34⋅10 3

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

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.