Find the domain of the function f(x) = 2/(8-9x)

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?

If i have one apple and give you the apple, how many apples do i have?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.