Answer:
I think its 41.
Step-by-step explanation:
a^2 + b^2 = c^2
41
9^2+40^2=1681
the sqrt of 1681= 41
5/9 of 90 = (5/9)(90) = 50
1. Order the values. 2. Find the median. 3. Find the lower quartile. 4. Find the upper quartile.