you have 1.75 yards of fabric 1.75 x 36 equals 63 inches. I would first cut what I need for the biggest pieces. To get four 12.5 x 12.5-inch squares, I would cut two 12.5-inch strips the width of the fabric which I assume is about 40 inches wide minus the selvage edges. You can get three of the 12.5 x 12.5 squares from one of the 12.5 strips cut. (40 divided by 12.5 = 3.2) so you can only get 3 which would take 37.5 of the inches with a 2.5 piece left over. So cut one of the 12.5 squares from the second strip you cut. 40-12.5 = 27.5 so you have 27.5 inches of the remaining second strip to get 2 of the 10.5 X 9.5-inch rectangles of this remaining part of strip two.
I would then cut 2 10.5-inch strips out of the remaining 38 inches of fabric. You should be able to get two 10.5 X 15.5-inch rectangles out of each of these strips. You might be able to get the other two 10.5 X 9.5 rectangles you need out of these strips too if you have cut carefully. You will still have about 17 inches of your initial fabric if you need to cut another 10.5 strip to get these two.