From Tom Nook, 3,000 bells.
A list of all the fish and their prices can be found here:
http://accf.wikispaces.com/Fish
a average of 20$
About 15.
city folk all the way so much better and has more to it also better graphics by far.
1800 bells
10.
you can't tell
2500 bells
2,500 bells
Up to 10.
its according to what your selling
Currently, Animal Crossing City Folk costs between $17 an $25, depending on where you shop.
999, 999 bells.