Guys I need help please

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?

How do you write something in scientific notation?

If f (x) = 2x2 +5/(x-2), complete the following statement: f(6) =