Which of the following could be points in the unit circle a. (6/7, srqt13/7) b. (5/13, 12/13) c. (4/3, 4/5) d. (1/3, 2/3)

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat