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2 answers:
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To find out the answer we divide 0.09 by 10: 
÷10=0.009.
Therefore, 0.09 is 10 times as much as 0.009.
Answer:
45158
Step-by-step explanation:
Since the colony grows at a rate of 12%, after 2 years there will be bacteria. Since you probably can't have part of a bacteria, you round to 45158.