Y=x+8 x+y=2 substituion

Geometry answer picture question pls . reason and statements

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show