Answer:
The 1920s in the United States, called “roaring” because of the exuberant, freewheeling popular culture of the decade. The Roaring Twenties was a time when many people defied Prohibition, indulged in new styles of dancing and dressing, and rejected many traditional moral standards. (See flappers and Jazz Age.)
World War I began after the assassination of Austrian archduke Franz Ferdinand by South Slav nationalist Gavrilo Princip on June 28, 1914.
A. Pea Ridge
It was the battle in Arkansas that was a victory in the south during the Civil War.
A local speed limit is an example of a real world situation that cam be mathematically represented by inequalities.
For example, if the local speed limit is 45 mph, you can write:
Speed ≤ 45 mph.
This notation means that speed is less or equal to 45 mph