Answer:
Developed advanced mathematical skills.
Explanation:
The Aztec and Incan Civilization was part of the ancient civilization that flourished before the arrival of the European in the New World after the discovery of America by Christopher Columbus.
Both of the civilization cultures developed complex mathematical systems and impressive advances in astronomy.
The Aztecs had their form of calculation where they used a base-20 number system.
Answer:
the 13th amendment abolished slavery
Explanation:
this is bad but oh well
The correct answer is A. Radical Republicans.
The Fifteenth Amendment gave people of color the right to vote, so D is definitely incorrect. B is incorrect too because labor union organizers wanted all workers to have the same rights. C is incorrect because by passing this Amendment, it would mean better prospects for women too. This leaves us with A, given that these Republicans were the ones who owned slaves in the first place.
