3(x+1)=2(x-1) solve for x

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?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i