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"$ Z# n! q/ @' _4 f

+ |1 A; z& a0 Z6 D( T1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
1 h5 k: V6 k5 E5 fAimee 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?"+ |" g. N. {; S9 W8 n+ B0 ?( m

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3 T. S7 @3 \8 ?. h% Y- i: fCaitlin 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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& A6 f* ^; X# D2. http://nz.youtube.com/watch?v=itjlj6i9XFo
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Q:"How many feet are in 2 1/2 yards?
) L# O) Q3 U1 {' `3 w7 C- ?, JA:"78") v* F$ q9 u# p4 Q! e4 a
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?