Question

this building housed a mayors office and a commissary, or grocery store. what does it tell you about hooverville society? people were expected to fend for themselves. some hoovervilles had basic public services and conveniences. hoovervilles lacked the services found in typical towns. complete having a mayor shows that this hooverville has a system of self - government tax collection resource distribution

Explanation:

The presence of a mayor's office indicates a form of self - governance, and a commissary or grocery store is a basic public service. So, it shows that some Hoovervilles had basic public services and a self - governance system.

Answer:

Some Hoovervilles had basic public services and conveniences.
Having a mayor shows that this Hooverville has a system of self - government.