A bacteria culture had a population of 13 million at 10:00 A.M., and by 2:00 P.M. had grown to 21 million. Predict the population at 6:00 P.M. that same day.
?
A. 35.2 million
B. 35.6 million
C. 31.5 million
D. 29.6 million
E. 33.9 million
Answer: E
Mathematics
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= ?
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, 
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A. 
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B. 
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, 
C. 
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