What is the common ratio of the geometric sequence below?

Answer:
b
Step-by-step explanation:
i just did the test that is the answer
Answer:
0.1
Step-by-step explanation:
Each time numbers move right the number to the left of it is being multiplied by 0.1
70 x 0.1 = 7
7 x 0.1 = 0.7
etc...