8 3/8 would be the answer because first off you would have to find the 8th of the 1/2 and 1/4. Then after you get all of them then you would add them together which would be 8 3/8.
36 divided by 90 gives the percent so its 0.4 which is 40%
Use the Pythagorean theorem to find the third side then add all three sides together
