What is three and seven eights as an improper fraction

What two consecutive odd integers have a sum of -28

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(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?