Answer:
They encircle the planet
times.
Step-by-step explanation:
Consider the provided information.
We have 2.5 mole of dust particles and the Avogadro's number is 
Thus, the number of dust particles is:

Diameter of a dust particles is 10μm and the circumference of earth is 40,076 km.
Convert the measurement in meters.
Diameter: 
If we line up the particles the distance they could cover is:

Circumference in meters:

Therefore,

Hence, they encircle the planet
times.
Answer:
go by 5's
Step-by-step explanation:
5
5
5
5
and so on.
Answer:
k=6,912
Step-by-step explanation:
5678+1234=6912
Answer:
-10y + 11.4
I hope this helps you out