50 Mexican dollars.
20$
Five dollars.5 dollars. Bills dated 1974 and later are only worth face value.
10 dollars. Nearly all U.S. bills dated 1969 and later are only worth face value.
The only U.S. one dollar coin dated 1981 is a Susan B. Anthony dollar. They are not referred to as Liberty Dollars. None were released into circulation or made from gold. It's been gold plated. Look at the coin again and post new question.
Unless it's uncirculated, $1. Nearly all U.S. bills dated 1969 and later are only worth face value.
50 cents.
I have a 5 dollar 1981 bill signed by the treasurer. Is this worth anything?
Face value unless it is crisp and unfolded.
Is worth anything
It's still worth $5.
Unless it is a "proof" coin (actual silver), it is worth one dollar.
Unless it is a "proof" coin (actual silver), it is worth one dollar.
Your 1981 Mexican 20 peso coin is made of cupro-nickel and worth less than a dollar if circulated (and maybe $2 or $3 if uncirculated).