In a circle, the parts of the diagonals multiply to equal each other, so 6·4=2x.
2x = 24, x = 12.
An educated guess
In order to find this you need to use the right triangle formula and multiply the two.
Hope this helps!
3/5 , 2/3, 5/7
60%, 66%, ~70%+
I gotcha
8x^4 + x^3 - 4x^2 +1. I believe the answer is B. Please correct me if I am wrong.