Answer:
galaxies.
Step-by-step explanation:
There are about
stars in the universe.
The Milky Way galaxy
stars.
All we need to do to find the number of galaxies is to divide the total number of stars in the universe by the number of stars in the Milky Way:
Number of galaxies = (Number of stars in the universe) / (Number of stars in the Milky Way)
Number of galaxies = 
N = 
N = 
The number of galaxies in the universe is approximately
.
Answer:
Step-by-step explanation:

Answer:
the answer is 10n-13
Step-by-step explanation:
this is a one step problem, all you need to do is add all the like terms together such as n and 9n and since they are both positives they add up to 10n and then with -10 and -3 they would add together to make -13. thats all there is to it, the answer is 10n-13
You multiply 3.14 by the diameter or 2 times the radius
for area you do pi or 3.14*radius squared
Yes 2/4 is less than 2/3 :) I hope this helps