Question: Biologists discover that a sample of a certain species of birds increases at an annual rate of 6….

Biologists discover that a sample of a certain species of birds
increases at an annual rate of 6.5% to 331 birds after a period of
9 years. Assuming general exponential growth, what was the original
(starting) size of this sample of birds? Remember, you can’t have a
“fraction” of a bird in a sample of birds.