Saturday

December 20, 2014

December 20, 2014

Posted by **Angie** on Sunday, June 14, 2009 at 11:43am.

does it take for the number of bacteria to grow to 2,560?

a. 2 hours

b. 3 hours

c. 4 hours

d. 5 hours

The answer is c., but is there another way to find this answer besides substituting?

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