Could someone please help me with number 7? I would really appreciate your help! I am struggling with this problem! Please provide the steps on how to solve the problem and he answer! Thank you! God Bless!

Because one side of the square is 8 (4*2), we know that the square's area is 64.
Now, we basically find the circle's area:
A=πr2 = 50.27
64 - 50.27 = 13.73
The area of the shaded region is 13.73