Answer:
45, 45, 90 is one of the most common angles which mostly makes the base of the sides to be 7,7,
This can be rewritten as 8.2 - 5.6 so it is easier to solve.
8.2 - 5.6 = 2.6
Hope this helps!
-0.65
-3/8
2/4
5/16
I hope this is right, the negatives should go first because you are taking away, then positives