Face value if it's from circulation. All circulation halves dated 1971 and later are made of copper-nickel, not silver.
A cupronickel proof version in its original packaging might retail for $3.50-15 depending on variety and quality.
A silver proof version in its original packaging might retail for $5-18 depending on variety and quality.
The gold plating doesn't make it worth any more. But, it depends on the date, 1964 Kennedy half dollars are 90% silver and worth a bit more than $10 at the time of writing, and 1965-1970 half dollars are 40% silver and worth around $4.25
Value is whatever someone is will to pay. Plated and colorized coins have no numismatic value and none of them has ever been made by the US Mint.
Exactly 50 cents. Gold plating adds no value.
One Dollar
$1.00
There were no 2003 Australian Ten Dollar star notes issued.
A 2003 American Eagle Bullion Dollar in MS65 condition is: $24.00.
0.9418 US dollar
2$
It is worth face value unless it is uncirculated.
yes, five dollars
$10.00
Since this bill is not rare and is circulated it is worth face value.
Up to a whole $2. The Treasury is still making series 2003 bills.
They're worth one dollar each.