Question

A scientist studies the girls of a certain microbe. One day 1 there are 4 microbes.one day 2 there are 7 on day 3 there are 12 . On day 4 there are 19 . How many microbes will there be after eight days

Answer 1

Explanation:

General formula for number of microbes = n^2 + 3, where n represent the day number.

So on day 8, there will be 8^2 + 3 = 67 microbes.