Answer:
x=6.6 y=12
Explanation:
To know this problem, you need to know the Pythagorean theorem, though I think you know this since it seems like you are doing a quiz or something like that.
+
=

Solving x:
- Plug the numbers in
+
=

- 77.44+
=121 - 121-77.44=43.56
=43.56
=

- x=6.6
Solving for y:
- Plug the numbers in

This might be too late, but I hope you were able to do well on your thing!
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