I don't know anybody that can be bothered to weigh tires. What is the purpose of that.
Pounds
The same as a tire that has not been inflated.
An average passenger vehicle tire can weigh up to 20 pounds. It really just depends on the type of car you have and the brand of tires.
That would depend on the size of the tire.
It depends on the size. Average small car tire is about 20 pounds
depends on how much air in tires
There are no "tire laws" for used car dealers.
depends on what kind of tire you are talking about like a bike tire or car tire or a motorcycletire slash /dirt bike tire. be more specific next time. bub!
tire
Putting a used tire changer in your car in case of a blown tire is a smart choice. You may want to test the tire changer if you buy it used. Having any extra equipment in your car incase of an emergancy would be beneficial.
20-30 pounds depending on the size.
You can inflat a tire on a car without taking the tire off by simply pressing the valve that is at the side of the tire that is used in pumping air in the tire.