Answer:
<h2>
XN = 6</h2>
Step-by-step explanation:
If XY is bisector of angle AXN then: 
X = 9 . Basically just divide 12 by 8 and then take that quotient (1.5) and multiply it by 6 in order to receive the product of 9.
Hope this helps! :)
I believe the length is 18 and the width is 3.
It is prime, it has no factors besides 1,23