A black die, a red die and a green die are thrown at the same time. What is probability that their sum adds up to 15?.

What are the domain and range of f(x)=[1/5]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?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !