1. What brought freedom for the slaves besides the Union winning the Civil War?

The Emancipation Proclamation.

Explanation:

Abraham Lincoln issued the Emancipation Proclamation during the Civil War, making slavery illegal/freeing all slaves at the time.

Update: Since this wasn't an option, it's the 13th Amendment.

we know that, volume of a rectangular prism is given by :

✿   {length × width × height}

given : the length of rectangular prism = 5.5

given : the width of rectangular prism = 6

given : the height of rectangular prism = 3

⇒ the volume of given rectangular prism = {5.5 × 6 × 3}

⇒ the volume of given rectangular prism = 99