35 percent of a number is what fraction

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 of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

[15 points, algebra 2]simplify the complex fraction and find the restrictions.