唔該！幫幫忙解答我以下2個問題唔該!

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唔係好明個問題同"答案"0 {! j3 e6 G1 `/ Y( R& I

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Aimee Teegarden: "Recent polls have shown a fifth of Americans can't locate the U.S. on a world map. Why do you think this is?"
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3 ~0 @) }1 n2 y$ q) p8 W1 c$ t1 _Caitlin Upton: "I personally believe that U.S. Americans are unable to do so because, uh, some, people out there in our nation don't have maps and, uh, I believe that our, uh, education like such as, uh, South Africa and, uh, the Iraq, everywhere like such as, and, I believe that they should, our education over here in the U.S. should help the U.S., uh, or, uh, should help South Africa and should help the Iraq and the filter-074 countries, so we will be able to build up our future, for our children."
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Q:"How many feet are in 2 1/2 yards?* o* _& N1 s* [7 Z" [
A:"78"% I# N' ~- a! T1 W
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?