Your company is designing a multi-tenant application that will use elastic pools and Azure SQL databases. The application will be used by 30 customers. You need to design a storage solution for the application. The solution must meet the following requirements:
✑ Operational costs must be minimized.
✑ All customers must have their own database.
✑ The customer databases will be in one of the following three Azure regions: East US, North Europe, or South Africa North.
What is the minimum number of elastic pools and Azure SQL Database servers required?

The minimum number of elastic pools and Azure SQL Database servers required is:

three elastic pools and one Azure SQL Database server.

Explanation:

The above will ensure that the Azure regions of East US, North Europe, or South Africa North are grouped into their three elastic pools.  Since cost minimization must be achieved, at the same time, one Azure SQL Database server will be enough to manage the 30 databases required, with one for each customer.  Creating more than one Database server will increase the operational costs.

it most likely is charging, however when using a hot spot, it drains straight through battery life.