The questions have notes that tell you what area of the book the answer is in. my suggestion is to read the chapter. even if you cant find the answers through that, it will help you come test time. if you're not up for that, you can easily google these. there's most likely an answer key, but try to find them in the book first.
The answer is: Political bosses expanded their power by helping immigrants in return for their loyalty.
At that time, many of the political bosses realized that if they somehow can help the immigrants obtain their citizenship, the immigrants will become much more likely to return their favor.
This mean that they can influence the immigrants to vote for them during the election in exchange for the citizenship. This help the political bosses expanded their power.
Answer: The Bhumija style. (I'm pretty sure)
He was a diff. color citizen and he made a speech after rosa parks (diff color) decided to refuse to give up her seat after a long day at work. So he made a " I have a dream" speech and later on he got assassinated in his house.