Without knowing the condition it is impossible to say. You need to take it to a dealer and have it appraised.
Depending on EXACTLY what you have, a few hundred to multiple thousands of USD.
Depends on when it was made.
Several German pistols used the 7.65mm cartridge. The Walther PP & PPK, the Mauser Hsc are just a couple of them.
Its positional place value is 700 = seven hundred
The square of 765 equals 585225. The cosine of 585225 equals -0.70710678118707 for your answer. Hope I helped!
$175 if in good condition
50-100 or so
50-100
50-100 or so
3.4% of 765= 3.4% * 765= 0.034 * 765= 26.01
* 47933 Crawfordsville 765 * 47934 Crawfordsville 765 * 47935 Crawfordsville 765 * 47936 Crawfordsville 765 * 47937 Crawfordsville 765 * 47938 Crawfordsville 765 * 47939 Crawfordsville 765
maybe 100