How do I Convience my parents to give me a hundred dollars for the mall w/ my friends

OK, first tell them that you will share it with your friends so that they don't think you will spend a hundred dollars (which you will) . Then if they say no say 80$! They say no? Tell them that you will spend it on imporntant stuff like that new shake-weight that you wanted for exercise (which you would but still buy other stuff that isnt imporntant next to it. like fushigi.) And then maybe they'll give in!!!!!!!!!!!!!!!!!!!!! An that is How to Convince Your Parents How To Let You Spend 100$ at the Mall.