Answer:
The scientific notation is 9.782 × 10-6
The Holocaust lasted from 1941 till 1945 however Jews were being killed in Germany since 1933, so it would be 1933 to 1945 and that makes 12 years. Approximately 5 and 6 millions Jews were killed, 1.5 million were children. But it's impossible to exactly how many Jews were killed since their deaths were in different events such as the concentration camps (ex: Auschwitz)
In 1875, the Supreme Court voted in favor to ban race discrimination when it came to things such as education and job opportunities.
In 1883 there was a series of Civil Rights Cases that reversed the ruling of the Supreme Court in 1875. This went into effect in 1937, but wasn't actually legislated until 1964, which is why the new act is now known as the Civil Rights Act of 1964.
I hope I was able to help, best of luck! I took an AP exam on all of this today so if you have more questions or need some more help I'd be glad to help.