JL would be 18 because it’s twice the length of JN.
X=Since you have an angle, a hypotenuse, and the opposite side, we can use:
sin(x)=opposite/hypotenuse
sin(60)=x/8 (cross multiply)
sin(60)*8=x
√3/2*8=x
x=8√3/2
x=4√3 so the answer is B
Hope this helps
3/x=5/y multiply both sides by y
3y/x=5 divide both sides by 3
y/x=5/3