Need help plz. Don't answer for points or you will be reported!

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?

What does x = in this equation x+3+2x=x+5

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?