There are six official languages of the United Nations: Arabic, Chinese, English, French, Russian and Spanish.
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Jefferson ,ohn Adams and John Q. Adams could speak at least three languages- maybe four. Garfield also knew several languages, but maybe not to speak.
As Ranked by The United Nations.. 1. Norway 2. Australia 3. Iceland 4. Canada 5. Ireland 6. Netherlands 7. Sweden 8. France 9. Switzerland 10. Japan 11. Luxembourg 12. Finland....
Ideally using a superscript 4 to the right of the thing being raised to the power of 4. Computer languages can use: 1) a double multiplication sign - a double asterisk, eg 2**4 is 2 to the power 4, which is 16; or 2) the caret symbol, eg 2^4 is 2 to the power 4. The latter (using the caret symbol) is often used when a superscript is impossible, outside computer languages.
Unlike normal languages, math does not change depending on where you are in the world. 2+2=4 in every nation.
The official definition of a rational number is: Any fraction with whole numbers on top and bottom.2/4 certainly meets that description.