Bacteria in a flask

A flask starts with $40$ bacteria, and each bacterium divides every $30$ minutes. You will find the number at every hour for $8$ hours, the first hour when it passes $100\,000$, and how many times bigger it is at the end. Then the program draws the growth on a log scale.

The idea. One hour holds two divisions, so the number is multiplied by $4$ every hour: $N = 40 \times 2^{2h}$ after $h$ hours.

Your tasks.

1. Set counts to the number of bacteria at each hour in hours.
2. Set first_hour to the first hour when the number is more than $100\,000$.
3. Set times_bigger to the number at hour $8$ divided by the number at hour $0$.