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In 2005, 8.1 x 10^10 text messages were sent in the United States

User Rehan Anis
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in 2005 , 8.1 x 10 to the 10th power text messages were sent in the united states.by 2007,the number of annual text messages had risen to 3.63 X 10 to the 11th power . about how many times as great was the number of text messages in 2007 than 2005?



Answer 3.63 10^11 ---------- = 0.448 10^1 =4.48 or 8.1 10^10 texting in 2007 was 4.48 times that of 2005
User Tkanzakic
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