Juanita sold a scarf for $24. Her wholesale cost was $10. What was the percent markup?

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 use the elimination method for this question? explain, because i really want to understand!

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?