For the answer to the question on which of the following sets is closed under division. I think the answer to this question is o<span>nly non-zero rational numbers are closed under division.
So the answer would be the fourth one.
I hope my answer helped you. Have a nice day!</span>
Answer: X=4
Step-by-step explanation:
She can buy 31 songs. Having $40.01 after buying the album, you need to divide this buy $1.29 for each song. You would get 31.105, but you can't buy a fraction of a song, so it would be 31 songs.