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
D is the correct fraction
The correct answer is b) 2
I believe the answer is 0.008
because
0.2 × 0.2 × 0.2 is equivalent to 0.008
