8. A) G x 3 = K
B) kabir earns 90
9.
A) M x 2 = G
B) M x 5 = F
10. I'm not sure what they mean by terms of x. I'm assuming they what arsenal represented as (x) so...
F(x) = C(3) or something like that not too sure so check it out.
I'll answer the rest in a bit