The Santa bill just has sticker of Santa covering the portrait printed on the bill. Being a series 1974, if it's in good condition, it could go for $25 or so.
Its value is 20 Dollars, if it was much older then it would be a different story.
In circulated condition, 20 dollars. Uncirculated, it might retail for all of $21-22.
One dollar.
If it is in perfect uncirculated condition, then it would be worth $60. In normal circulated condition, it is worth $20.
Still one dollar....sorry : (
It's still worth one dollar.
If the coin is a US Kennedy half dollar dated 1974 it has no silver in it and is face value.
1974 would make it an Eisenhower dollar, which is only worth face value.
2 dollars
Current retail is $2.40
50 cents
It's still worth exactly 50 cents.