Plz hlp couldn't find the answer

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 the equations below which statement is true ? -2x=14 6x=-42

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles