I believe it’s 8 because 24 divided 75% is 32.
Answer:
5
Step-by-step explanation:
Fifth-grade math class taught me.
In this problem
we have an exponential growth function of the form

where
r=10%=0.10
Let
t=0 ---------> 12 years ago
so
Presently -------> t=12 years, y=80,000 bacteria
substitute

therefore
<h2>The population 12 years ago was 45,158 bacteria</h2>