Somebody please help me with this

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(s) to x^2-14+49=0

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i