Help with exercise please

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

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