The answer is B 13.5 miles
The measuring unit is the standard unit of a quantity
The measuring unit of size 0.001 is represented by one millionth circle
<h3>How to determine the unit of base 0.001</h3>
The basic measuring unit in base 7 is given as:
49 circles
The above can be represented as:
Base 7 = 49 circles
Represent the base with n.
So, we have the following rule

For measuring unit 0.001, we have:

Evaluate the square

This means that,
The measuring unit of size 0.001 is represented by one millionth circle
Read more about measuring units at:
brainly.com/question/16393390
i think it might be B. :)
Answer: 18 students do NOT prefer pop music.
Explanation: 2/5 of 30 students do PREFER pop music, that means the rest, which is 3/5, does NOT prefer pop music
3/5 of 30 is 18
30 divided by 5 x 3 = 18
You can trust this answer
Goodluck!