Answer:
The Constitutional Convention (also known as the Philadelphia Convention, the Federal Convention, or the Grand Convention at Philadelphia) took place from May 25 to September 17, 1787, in the old Pennsylvania State House (later known as Independence Hall because of the adoption of the Declaration of Independence there.
Answer:
Because of the treaty they made.
Explanation:
Their lives were almost bad terms like new labor was brought to them to replace the shattered world of slavery. After the civil war, many former slaves, planters and non-slaveholding whites were transformed. Later new systems of labor emerged to take the place of slavery as well, sharecropping..
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