Might you be likely to see inselbergs in hilly or mountainous areas?

No

Explanation:

Inselberg is a prominent part of the relief, normally seen in flat plains and not in mountainous regions. Inselbergs are generally remnants of areas that have resisted the processes of pediplanation and pedogenesis, thus forming a high part of the relief. It is characterized as a region rich in vegetation and biodiversity.

Yes, it is an isoltaed rock or small mountain