How much money would i get if i sold 6 games to gamestop?

If i sold Lego batman with pure and need for speed shift and assassins creed 2 and Dante's inferno with NBA 2k9. How much money would i get??

These games are from Xbox 360 that i have. Any Ideas?How much money would i get if i sold 6 games to gamestop?
Since Jack-Sh!-Almost-Nobody lives in Australia, I'd guess about... 17-20 USD- maximum. Probably even less.
$25-$35. It depends where you sell it. They don't give you much for trades to gamestop. I would look somewhere else for trade-ins where you could possibly get up to $40.How much money would i get if i sold 6 games to gamestop?
Probably 5$
In Australia you would get about $25 Au. They don't give you much money for trade in's. It's better to sell on eBay.How much money would i get if i sold 6 games to gamestop?
50$ or more..