$50 bills dated 1990 and later are only worth face value if you got them in change. Uncirculated ones might retail for a couple of dollars more.
No US $1 bills are dated 1990.
A 1990-series $20 bill is too new to have any added value. Some of them are still in circulation.
A date is needed. Please see the question "What is the value of a (date) US 20 dollar bill?" for more information.
Please check your bill again and post a new, separate question. There were no 1990-series $1 bills.
No such bill
Please post a new, separate question with the bill's denomination.More information may be available at the following questions:"What is the value of a 1963 US 1 dollar bill?""What is the value of a 1963 US 5 dollar bill with a green seal?""What is the value of a 1963 US 10 dollar bill?""What is the value of a 1963 US 20 dollar bill?"
The US didn't print any $1 bills dated 1990. Please check your bill and post a new, separate question describing the nature of the misprint.
One dollar.
100 dollars. It's too new and there are too many in circulation for it to be worth more than face value.
$50 bills dated 1990 and later are only worth face value if you got them in change. Uncirculated ones might retail for a couple of dollars more.
Please in a date.
US$1.25