help me answer pls, and how's my avatar, I hope you guys like it, and do you think being a couple is good or being single is good and this is me in real life.

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?