Answer: It depends on how much they are asking if you want to hang out with you, how much time they spend with you after you guys are hanging out, maybe they just hang out with you for a specific reason, etc. There are a lot of reasons but in my opinion it depends.
It would equal a even number
There was a 20% decrease from $42.50 to $34.00. You can model this by multiplying 42.50 by 0.80, which gives you 34.
6+2n>12
n>3 is true because 6 minus 12 equal 6 divide by 2 is 3