The opposite angles of a quadrilateral are supplementary so you can set them equal to 180.
If there was more information given then i could find the exact values.
Hope this helps :)
Answer:
16.6%
Step-by-step explanation:
(75/89.95)*100=83.37....
100-83.37...=16.62...
=16.6%
The answer is 13 because first u do the parenthesis and the answer from that u subtract -3
