Assuming that your rifle is a Mossberg, values run about $125-$175, depending on condition.
A Mossberg 22 rifle such as the Plinkster depending on the condition is worth around $150-200.
100-415 USD
50-100
They sell for about $300-$350.
10-125 USD or so
50-125 or so
Impossible to answer without knowing if it is a rifle or shotgun.
50-175 usd
100-300 USD depending on condition.
15-150 USD or so
Depending on condition, between $100 and $200.