Which number is irrational ?

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?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

Are the corresponding angles congruent? explain why or why not.