Not enough details to answer. Please post a new question listing the bill's date, its seal color, and whether there is a small letter right next to the date.
You don't have to provide the serial number because that's almost never a factor in a bill's value.
The value of a 1999 US 1 dollar bill depends on its condition and rarity. In general, a circulated 1999 US 1 dollar bill is worth its face value of $1. However, if the bill is in uncirculated condition or has a unique printing error, it may be worth more to collectors. It is recommended to consult with a currency appraiser or collector for an accurate valuation.
As of 03/2010 a 1974 US $10 bill retails for about $11 in circulated condition, and roughly $18 if crisp and uncirculated.
In average condition it has no extra value. A crisp, uncirculated 1977 US $20 bill might retail for all of $22 or $23. A dealer will only pay face value.
Unless it's crisp and uncirculated, it's only worth face value. If it's uncirculated and not folded, it could retail for as much as twice that amount.
As of 02/2011 a circulated US $100 bill would retail for about $105. A nice uncirculated one could bring $120.
As of 06/2014 it has no added value, even in uncirculated condition.
Unless it is uncirculated, any $20 bill printed since the 1970s is worth only face value.
A nice uncirculated one might retail for $3 but a dealer will only pay face value or maybe $2.25 if you're fortunate.
Face value only. A 2009 $1 bill is too common and too new to have any extra value, even in uncirculated condition.
Despite its age, in circulated condition it has no added value. Uncirculated, it might sell for all of $1.25
The value of a 1999 US 1 dollar bill depends on its condition and rarity. In general, a circulated 1999 US 1 dollar bill is worth its face value of $1. However, if the bill is in uncirculated condition or has a unique printing error, it may be worth more to collectors. It is recommended to consult with a currency appraiser or collector for an accurate valuation.
Please check your bill again and post a new, separate question. There are no US $1 bills dated 1997.
As of 03/2010 a 1974 US $10 bill retails for about $11 in circulated condition, and roughly $18 if crisp and uncirculated.
As of 11/2011, it might sell for $52 in nearly-uncirculated condition, $60 in crisp uncirculated condition. A dealer will pay face value only.
Unless it's crisp and uncirculated, it's only worth face value. If it's uncirculated and not folded, it could retail for as much as twice that amount.
In average condition it has no extra value. A crisp, uncirculated 1977 US $20 bill might retail for all of $22 or $23. A dealer will only pay face value.
These bills are not rare. In circulated condition they have no extra value. Even uncirculated, they retail for at most $1 more.