We are asked to determine the amount per capita of Starbucks. To do that we will divide the number of Starbucks by the number of inhabitants:
![(645)/(19890000)](https://img.qammunity.org/2023/formulas/mathematics/college/otl4ug28q8htr3dfxo5fpd4botc4wptc9h.png)
Solving the operation:
![0.0000324](https://img.qammunity.org/2023/formulas/mathematics/college/57mbsoa8iyw5b7178e08fhbqd34yv1ihtw.png)
This is the answer per capita
In scientific notation, we move the decimal point 5 places to the right and multiply by 10 to the -5, like this:
![0.0000324=3.24*10^(-5)](https://img.qammunity.org/2023/formulas/mathematics/college/2laa0ucazdx6qdm4xbjz9e4prim8zgk6vw.png)