They all look very well circulated, so they probably aren't worth very much (unless you happen to have a rare year or fancy serial number). Can you give us pictures of the back sides of the notes?
"What we are is not as important as what we aren't"
The 500 Pesos from Argentina looks like P-303b2 (1979-1981) & has a book value of $0.26 in VF. Your note appears to be in VG to F so not much value there.
I would check the others on this site but they're likely in the same category due to condition.
