How can a 12 year old make 100 dollars in two weeks?

-I have to buy a 85-100 dollar thing by August first. I don't have any people to babysit and my brother took the mowing job. I'm not aloud to sell things either. My neighborhood only has one dog and that's my dog. :(wow thats pretty tough, tell this to your parents and ask them to do anything around the house or help them out such as do their chores, clean the house, etc in return for a little moneyYou could tear the legs off of your pants and stand on the street corner.
You r left with only one option, that is to forge notes worth of $100. seriously very complicated situation!
You're 12. I honestly don't know what to tell you if you can't sell anything.
Wash cars!
You're not allowed to be on Yahoo! Answers coz you're younger than 13.