Determine the domain and range for each function. Hope you can see !

Which rational number could be graphed between -4 and -5

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?

Add the fractions and simplify 1/2+ 1/3