MULTIPLE QUESTIONS ONLYY please help i gotta turn this in in 10 minsss

What triumphs did the late 19th century witness in the realms of industrial growth, urbanization, and technological innovation? what challenges did these developments pose for urban dwellers, workers, and recent immigrants? how did city officials and everyday citizens respond to these challenges?

Between 1870 and 1916, approximately how many immigrants came to the united states? 10 million 25 million 75 million 125 million

Why did roosevelt support a europe first strategy even though it had been japan that had first attacked the us