HELP ASAP, COUNTS HALF OF MY GRADE!!

What is the distance between (–2 1/2,-3) and (1, –3)?

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?

It says factor each expression completely 8y+48