I am submitting agian, I am not sure the answer someone gave sounds correct.

We are learning about exponents. A type of bacteria reproduces by splitting in two every thirty minutes. How many bacteria will there be after 4 hours if there are 2 bacteria to begin with?

3 answers

2
4
8 = 1st hour
16
32 = 2nd hour
64
128 = 3rd hour
256
512 = 4th hour
Thank you Ms. Sue, I was not sure if it was 256 or 512.
You're welcome, Kam.