It depends on if you were selling to a private person or if you were selling it to a store like GameStop. Selling it to a store would not be much because they are not popular anymore. They might pay $20-$30. It would depend on how badly an individual wanted a GameStop how much they would be willing to pay for one, but it would likely be about the same amount as a store.
40
300-900$
Usually, a DS Lite will be sold at about 100$. Game Boy has out. You can surch on any related sites.
10-15 $
about 15-20 dollars
Probably about 15 dollars , depending on which game it is.
you could sell a gameboy color for 60 to 80 dollars
$35
Next to nothing. Most stores that would actually still sell them, would only want around £4 or so, so will only pay you a fraction of that for it.
no
Ebay would be your best bet.
you mean how much could i sell my game boy advanced Sp for? I'd say around 20-40$ But I'd recommend that you save it though its one of the only consoles that play the original game boy color games. Id save it. but that's just me