The best option from the list would be that "<span>A flat tax taxes all taxpayers at the same percentage," since this is in contrast to a "progressive tax," which taxes people with different incomes at different percentages. </span>
I’m pretty sure one of the answers is the first option (The Inca were a self sufficient and hardworking group of people), as the text states, “No one who was lazy or tried to live by the work of others was tolerated; everyone had to work”.
The other answer might be the fourth option (The Inca government provided for its people during times of need), as it says in the text, “and if he was ill, he received what he needed from the storehouses)
The answer is Democratic ideals.
Judging from your other questions, I would guess the Aztecs, because they had an extremely advanced civilization relative to their time period. However, you might want a second opinion to verify this. Hope this helps.
B.Two American Indians died.The answer is B I think.