That's "what ARE" and "dollar" ...
But beyond that you have to be a lot more specific. Please post new questions, one for each bill or type of bill. Include the bill's date, the ink color (blue, green, red) and whether there is a small letter next to the date. You don't need to copy the serial numbers though.
There is no information available online that lets you search for the year a 20 dollar yen dollar was made with serial number 702611. You should speak with an expert in the field of old Japanese money to help you determine its worth.
To find out how much a 20 dollar yen dollar with serial number 702611 is worth you will need to talk to an expert in money exchange. The value of the yen will depend on the condition of the money.
A person can exchange their old dollar bills at their local baking establishment. They may also exchange the bills for cash through a collector or dealer.
You can exchange your old dollar bills for newer ones at most banks or financial institutions. Just bring your old bills and they can provide you with new ones.
It depends on a few things such as: the seal color, year of issue, state of issue and quality.
The value depends on the series (date) and condition. If it's series 1976 or later, it's worth face value.
1934 $10 bills are fairly common, so if it's very worn / tattered / etc. it's probably not worth more than a dollar or two extra.
1957 $1 bills are silver certificates. In the old days, you could trade that dollar for $1 worth of silver, or silver dollars. Right now, you can sell them or keep it.
You can exchange old US dollar bills for new currency at most banks, credit unions, or the Federal Reserve.
Yes!
There's an old saying, "As phony as a $3 bill". That's because the U.S. doesn't make $3 bills.
Yes, old dollar bills issued by the U.S. Treasury remain valid for use in transactions as long as they are in good condition and not counterfeit.