Answer:
As well as giving us the concept of zero, Indian mathematicians made seminal contributions to the study of trigonometry, algebra, arithmetic and negative numbers among other areas. Perhaps most significantly, the decimal system that we still employ worldwide today was first seen in India
Explanation:
I can say maybe either trade or language. I lean more on trade because majority of native Americans didn’t speak the same language as the Europeans.
I believe the answer is C. "northwest of the Persian Gulf"
The correct answer is B) choose only highly qualified individuals for cabinet posts.
Hope this helps!:)