About 80 dollars. 10 or so for issue one and 6 each for the other 11 in the series.
Depends on condition, age, scarcity, and interest to collectors. Some comics are worth a great deal of money, others end up in bargain bins, worth less than their original cover price. Search for...
It depends on the comic book. Some can vary from low prices such as $5.00 or $100.00+ Usually older comics that are hard to find are worth more
300.00
Depending on the comic, most likely nothing.