Question

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Answer 1

6. 25 to 64

Answer 2

7. more than doubled

Answer 3

8. differ from country to country.

Answer 4

6) 25 to 64. " By 2020, older workers age 55+ will account for 25% of the U.S. labor force"

7) http://www.nytimes.com/1981/05/26/us/1980-census-finds-sharp-decline-in-size-of-american-households.html

8) http://www.uscis.gov/sites/default/files/files/article/chapter2.pdf

This websites will help you understand the questions and give you the answers you just have to read it that's if you want to actually learn and not just get direct answers from other people.

Answer 5

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