A=square root of b+6
make b the subject formula

What is the value of x? enter your answer in the box. (cm)

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?

Find the solution of this system of equation -7x+y=-20 9x-3y=36