HELP I NEED HELP!! ASSIGNMENT DUE IN A FEW MINUTES. QUESTION IN PICTURE. WORTH 20 POINTS PLEASE HELP

What is the size of the matrix resulting from

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?

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.