how much will i get for trading in a DS with all the cords and 4 games

Vague question is vague. Where you trading, what games, what currency (Country), condition of DS?

im traiding it in at game stop, games are guitar hero call of duty 4 and i forgot other 2....in the U.S. and the Ds is in perfect conditiong except for a few scratches on the outside of it

like nothing
i would advise your sell to a friend, eebay, craigslist, or amazon.

or dont sell it....