Answer:
x=6√3
y=12√3
Explanation:
This is a 30 60 90 triangle.
The side opposite from the angle 60 is x√3, which makes 18=x√3, which eventually solves to x=6√3
The side opposite from the 90 degree angle is 2x, so multiply 6√3 by 2, which is 12√3, making y equal 12√3
I hope this helps :)