3/5 -(-2/7) i need the value of the expression and work to show

6.3x+14 and 1.5x-6 answer in simplified form

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?

Which expression is equivalent to sq-80