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 S* J3 [: e$ z) `

, u5 H% f; Q( n0 t0 C1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
0 V4 T8 k) V) d2 F' d5 N( l$ rAimee 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?"2 \2 ?- ~( L0 x- E! C4 S2 f5 O6 l
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5 ^4 U) A% s1 E! eCaitlin 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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2. http://nz.youtube.com/watch?v=itjlj6i9XFo6 }5 Y/ M- A$ ?% g8 O
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Q:"How many feet are in 2 1/2 yards?
* W9 [" ]6 n* f' nA:"78"
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- r5 p- v5 R  Z+ P# {3 dWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?