The basic unit of exchanging in the United States is the dollar, which is divided into 100 cents. One dollar is commonly written as $1 or $1.00. There are four denominations of commonly used coins: 1 cent, 5 cents, 10 cents, and 25 cents. Americans usually refer to coins, not by their value in cents, but by their names. A one-cent coin is a penny, a five-cent coin is a nickel, a ten-cent coin is a dime, and a twenty five cent coin is a quarter. There are also one-dollar coins and half-dollar coins but they are seldom found in circulation. U.S. paper money (often called bills) comes in single-bill denominations of one dollar, two dollars (these are rare), five dollars, ten dollars, fifty dollars, and one hundred dollars. You will immediately notice that, unlike in most other countries, U.S. bills are all the same size and the same color. They are differentiated from each other by the number value and with the portrait of a different U.S. historical figure on each denomination. At first, you may find this confusing and you will need to watch which bills you use carefully. However, you will become accustomed to the currency and will soon be able to differentiate easily between the denominations. U.S. coins also are marked with the coin´s value and each denomination is a different size. From: http://educationusa.state.gov 

Book 4, Chapter 7, pg. 99-100.

The prepositions of place between and among are used with people and things. Choose the incorrect sentence regarding to those prepositions: