A and B are two cities. N
a) Measure the bearing of B from A.
A
b) Measure the bearing of A from B.

I have figured Question B but can I get an explanation on A? It says 30 is wrong.

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d