120 x .20 = 24
Downloaded 24 rap songs
120 - 24 =
To find percentages you take the number that you start with and multiply it by a decimal (convert percent to decimal by moving decimal 2 places to the left).
Then to find the 2nd answer to your word problems Take the original number and subtract the new answer.
I hope this helps. I started you on two problems but I want you to try some of the problems on your own. Let me know if you still need help