As I write this in early 2010, the model 11 is more than 50 years old. Depending on condition, they are worth from $125 to $300.
100-300 USD
100-300 USD
Model 58 is an automatic not a bolt action
100-300 USD
$32,500,690 at least
Your question answers itself.
30p
100-400 USD
800
Tough question, the Remington model 550 is a .22 rifle not a 12 gauge shotgun.
Browning did not make the Model 11, Remington did. If you have a Remington Model 11 in 16ga, value is between $150-$450.
Depends on model and age.