Answer:
In this option B is correct
The answer would be C. both plane A and B because it's on line s which lies on both planes.
I think it might be 38
The first equation-
21/3=7
So spider=7
The second-
(17-7)/2=10/2=5
So hat=5
The third-
(11-5)/2=6/2=3
So bat=3
The fourth-
3+5x7=3+35=38
If ^ means exponents, it should be -9a^6