Answer:
So, the amounts are:Downloaded new songs: 12 (because you added 12 new songs)Deleted old songs: 5 (because you removed 5 old songs)
Explanation:
You start with an MP3 player that has some songs on it.
You download 12 new songs and add them to the MP3 player.
Now the MP3 player has 12 more songs than it originally had before the download.
Later, you decide to clean up your MP3 player and delete 5 old songs.
As a result, the MP3 player now has 5 fewer songs than it did after the download.