Write the equation of the exponential function that passes through (0,2) and (2,6)

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 is the solution of the systems of equations? y=2/3x+3 x=-2

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827