It depends on the weather but ill go with the second one. U dont have to take my advice tho.
S=θr
10.91=θ5
10.91/5=θ
therefore
θpie/180= your answer in radians
So in order to get rid of the cubed roots, you must cube each side of the equation. what you do to one side you do to the other at all times. so when you cube a cubed root, you get whats in side. so after the first step, you should get x+5=8(2x+6) now distribute the 8 on the right side of the equation and get x+5=16x+48solve for x and get x=-43/15
IF i did my math correct it should be the 2nd answer b
