C. Mongols I believe that it happened in 1223
Explanation:
I would be willing to sacrifice my life in a heartbeat for all of my friends and family. I like to think life so far made cold hearted but I am just raw from the pain and I wouldn't be able to live with myself if I choose myself over someone I knew and loved. Heck, even a stranger would take me further into the guilt rabbit hole, they have family and friends who love them also. should be willing to make to have freedom that's what sacrifices I would make.
The Industrail Revolutuion and the atlantic reveloution
Rockefeller and Andrew Carnegie use their money for the public good in a way that they embarked on huge, independent philanthropic efforts.
At the beginning of the 20th century, Carnegie and Rockefeller, who were the richest men in the nation, started massive, independent philanthropy initiatives. In the final decades of his life, each donated hundreds of millions of dollars. And each endowed a foundation that continues to be active in philanthropy.
Carnegie and Rockefeller focused on issues like health care, scientific research, and education in order to address the core causes of major global issues. They donated money to scientific advancement.
To learn more about Rockefeller and Andrew Carnegie here
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x + 6 + 2x = 15
x+2x+6= 15 ( combine like terms)
3x+6= 15
move +6 to the other side
sign changes from +6 to -6
3x+6-6= 15-6
3x= 15-6
3x= 9
divide both sides by 3 to get x by itself
3x/3= 9/3
Cross out 3 and 3 , divide by 3 and then becomes 1*1*x= x
x= 9/3
Answer: x= 3
