Single. Not 65 or older: The minimum income amount needed for filing taxes in 2020 should be $12,400. 65 or older: It should be over $14,050 to file a tax return. If your unearned income was more than $1,050, you must file a return.
Sonar means sound; the equipment uses sound waves typically to measure the depth of the ocean. Hope this helps :)
Answer:
hieroglyphics
Explanation:
hieroglyphics are a writing system used by ancient egyptians made of symbols and shapes. they would carve them in caves and stone for communication, but later they used cuneiform which is clay tables that scribes used to keep records.
The best answer to the question that is being presented above would be letter b. The social science that helps historians learn about group behavior would be Sociology. If you're talking about a certain ethnic group, then it's anthropology.
What do you mean why this question? I could have helped you if you further explained it a little more.