Answer:
5. Formula: an=ar^n-1
Given: a=500, r=2, n=24
> a24=(500)(2)^24-1
> a24=(500)(2)^23
> a24=(500)(8388608)
> a24=4,194,304,000
After 24 hours the total of bacteria is 4,194,304,000
6. a=500, r=2, n=24
7. the geometric sequence formula an=ar^n-1 because the bacteria doubles every period of time
8. By using the formula of geometric sequence