Which event prompted the investigation that led to these findings?

Events that could have caused the investigation that led to these findings is that they need evidence, lawyers, and witnesses.

Explanation:

When they investigate these findings they need physical proof.

the answer is b. 300t + 3/2xt

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.