math quizz for you ! easy points !?

[~Danika~lovedogs~]

ok well Milla goes to buy a chinchilla the chinchilla is 70 $ + tax but she has a 10% rebat on it so how mush will the chinchilla cost ?

this is for a math problem... that my friend asked me and am to lazy to do it xP so pleasae no stupid answers just for real !