there are too many spelling incorrections for me to understand the question, sorry.
Answer:
You want to maximize x and minimize y
Maximum y = 8
Minimum y = 10
8-10= -2
If 10% of songs represents 6 songs,
then 100% of songs represents (100 * 6) / 10 = 60 songs
The playlist has a total of 60 songs.
I think its B
Correct me if this is wrong
You'd make a total of $25,125.46 and the interest is $11,125.46