I can answer the first four
1 is 40%
2 is 60
3 is $1.35
4 is 6%
84 Is the answer thank me later god bless you
5 and 2/10 converted into decimal notation would be, 5.2
4 (3n-2) is the answer.
Woops. Sorry I had no idea that it said expression (s) instead of expression, but that is one of the answers though.
