Siver Games How Much Would Gamestop Give Me For About All These Games?

How much would gamestop give me for about all these games? - siver games

I will go no "on eBay" answers, but here the games are:
Sega Superstar Tennis Wii
Wii Sonic and the Secret Rings
Wii Ninja Reflex
Wii Sonic and the Black Knight
GameCube Mario Kart Double Dash
-Sonic Heroes GameCube
Sonic Riders GameCube --
DS-Transformers-Decepticons
360 Naruto Rise of a Ninja
Fantastic 360-4 and increased Siver Surfer