He should have found the GCF of 7 and 9, not 3 and 9.
Note that:
Micro = 1e + 6 of a meter
Nano = 1e + 9 of a meter
Centi = 100 of a meter
Milli = 1000 of a meter
In this case, nano, or (B) is your answer
hope this helps
<h2>Explanation:</h2><h2 />
The question is incomplete so I'll assume the segment LM is defined by these two points:
So we can find the length of the segment by using the distance formula:
Answer: it's a (1,2)
Step-by-step explanation: