yes
Actually, a better answer is, probably. As long as the pistol is designed to fire 9mm Para, you can fire 9mm Luger rounds. Smith and Wesson makes a couple of models that are 380 which is sometimes called 9mm Kurz, 9mm short, or 9x17 which is NOT the same.
No. Not all 9mm cartridges are the same. 9x19 (a.k.a., 9mm Luger, 9mm Parabellum), for example, is different, hence, not compatible with other 9mm cartridges, such as the 9x17 (a.k.a., .380 ACP), 9x18 Makarov, 9x21, 9x23 Mauser, etc.
Thje proper name of the cartridge is 9mm Parabellum, It is also called 9mm Luger, and 9x19 (the size in millimeters) They are all the same cartridge, just called by different names.
The common 9mm cartridge is known by many names. All of the following 9mm's are one and the same: 9x19mm, 9mm Nato, 9mm Luger, 9mm Parabellum. There are no 9mm cartridges specific to Glock or Smith & Wesson.
Those that are marked for 9mm ammunition. Shotguns, rifles, handguns all have been or are chambered for 9mm
The M9 pistol is chambered in 9mm Parabellum (9x19mm) caliber.
A bullet with a diameter of approximately 9mm. Not all 9mm projectiles are exactly 9mm in diameter - the 9x19 Parabellum/Luger has a diameter of 9mm, while the 9x18 Makarov has a diameter of 9.27mm, the 9x23 Steyr has a diameter of 9.03mm, etc.
The "P" as in +P or +P+ indicates a higher velocity load. Not all guns can handle this.
You're probably thinking of the 9x19, also known as the 9mm Parabellum or 9mm Luger. It's pretty much standard through all militaries, save for those which adopted Soviet weaponry exclusively during the Cold War. While it remains in current use, it is hardly a new development - the cartridge was first fielded in 1908 in the Luger pistol.
Impossible to answer without a detailed description of all features, markings, papers, etc..
a 9mm is not very powerful and i have one and a can shoot it and hit the target at maybe 150 to 200 feet if you want to be accurate at all
Impossible to answer without a detailed description of all markings, features, finish, condition, box, papers, accessories, etc..
100 to multiple thousands of USD depending on EXACTLY what you have. Jan C. Still's Luger forum would be a good place to post IF you provide a DETAILED description of ALL markings and overall condition.