Answer:
American teens have a lot on their minds. Substantial shares point to anxiety and depression, bullying, and drug and alcohol use (and abuse) as major problems among people their age, according to a new Pew Research Center survey of youth ages 13 to 17.
Explanation:
tan A should be the corner try work out work out:

first and then add all the others (B=90)
Explanation:
A and C should be the same
Answer:
After the collapse of the Soviet Union in 1991 and collapse of Soviet Russia's controlled economy, a new Russian Federation was created under Boris Yeltsin in 1991. The Russian Federation had multiple economic reforms, including privatization and market and trade liberalization because of collapse of communism.
Explanation:
The correct answer would be World War II. The largest amount of Americans who served in the armed forces is during the World War II. During the world war II, <span>a large standing army become officially established. Hope this is the answer that you are looking for. </span>