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Answer:
If you divided the hours they worked and then add that to what they got all together and u should get the answer
Step-by-step explanation:
i hope this helps a little
3276800/8 = 409600 (how many bacteria in an hour)
Then just multiply that number by the amount of hours you want to solve for
9 hours = 3686400
10 Hours = 4096000
First answer is 4 chances and second answer is 2 chances
