1. Money in the USA

2. United States dollar
The United States dollar (sign: $; code: USD) is the official currency of the United States of America.

3. Some interesting about dollars
Code – USD.
Official users: Ecuador, El Salvador, Puerto Rico, Northern Mariana Islands, U.S. Virgin Islands, American Samoa, Guam, United States Minor Outlying Islands, Saba.
Symbol - $.
Coins: 1¢, 5¢, 10¢, 25¢, 50¢, $1.
Banknotes: $1, $2, $5, $10, $20, $50.
1 dollar = 100 cents

4. Etymology
In the 16th century, Count Hieronymus Schlick of Bohemia began minting coins known as Joachimstalers (from German thal, or nowadays usually Tal, "valley", cognate with "dale" in English), named for Joachimstal, the valley where the silver was mined. Joachimstaler was later shortened to the German Taler, a word that eventually found its way into Danish and Swedish as daler, Dutch as daalder, Ethiopian as talari, Italian as tallero, Flemish as daelder, and English as dollar. Alternatively, thaler is said to come from the German coin Guldengroschen ("great guilder", being of silver but equal in value to a gold guilder), minted from the silver from Joachimsthal.

5. Nicknames
The colloquialism "buck" is often used to refer to dollars of various nations, including the U.S. dollar. This term, dating to the 18th century, may have originated with the colonial fur trade.
"Greenback" is another nickname originally applied specifically to the 19th century Demand Note dollars created by Abraham Lincoln to finance the costs of the Civil War for the North.
Other well-known names of the dollar as a whole in denominations include "greenmail", "green" and "dead presidents" (the last because late presidents are pictured on some of the bills).
"Grand", sometimes shortened to simply "G", is a common term for the amount of $1,000.
The $100 bill is nicknamed "Benjamin", "Benji" or "Franklin" (after Benjamin Franklin, who is pictured on the note). The $20 bill has been referred to as "double sawbuck", "dub" or "Jackson" (after Andrew Jackson). The $10 bill - as "sawbuck", "ten-spot" or "Hamilton" (after Alexander Hamilton). The $5 bill - as "fin", "fiver" or "five-spot“.
Some people refer to U.S. money as "cha-chingers", "bucks", "green-backs" and "smackers".

6. Dollar sign
2). Another explanation is that this symbol for peso was the result of a late 18th-century evolution of the scribal abbreviation "ps." The p and the s eventually came to be written over each other giving rise to $.
1). The symbol $, usually written before the numerical amount, is used for the U.S. dollar (as well as for many other currencies). The sign's ultimate origins are not certain, though it is possible that it comes from the Pillars of Hercules on the Spanish Coat of arms on the Spanish dollars that were minted in the New World mints in Mexico City, Potosí, Bolivia, and in Lima, Peru. These Pillars of Hercules on the silver Spanish dollar coins take the form of two vertical bars (||) and a swinging cloth band in the shape of an "S".

7. Notes 1). 5 dollars with Abraham Lincoln.
2). 10 dollars with Alexander Hamilton.

8. Notes
3). 20 dollars with Andrew Jackson. 4). 50 dollars with Ulysses Grant.

9. Notes
5). New 100 dollars with Benjamin Franklin (since ). 6). 500 dollars.

10. Notes
7) dollars.
8) dollars.

11. Coins
0,01 $ - Wheat Penny, Penny, Cent 0,05 $ - Nickel 0,10 $ - Dime

12. Coins 4). 0,25 $ – Quarter 5). 0,50 $ - Half dollar, 50-cent piece
6). 1 $ - SBA, Suzie B