Find the perimeter of the polygon if

Can you decompose the numbers 20,740,6,000

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

For each proportion find the unknown number x 1/5/8=×/15