Question

b)suppose only 1 in every 1,000 stars in the observable universe has a planetary system. how many planetary system are there? First Answer gets brainliest and 20 pts if want more ill put up another question of hundred pts so answer this one first

Answer 1

Answer:

Please read below :)

Step-by-step explanation:

so you have 1 in a 1000, or 1/1000. But you're missing a part of the answer. If you post the whole answer I can give you the correct answer :)