唔該！幫幫忙解答我以下2個問題唔該!

xylitol25

唔係好明個問題同"答案"
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5 w8 Y# x: q4 u: g) `$ K8 H1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
$ i& B8 r4 g6 X( J8 {$ }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 I6 |5 g& y5 S& ?% Z* _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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4 d+ _9 ?, n0 U  b7 o& F2. http://nz.youtube.com/watch?v=itjlj6i9XFo5 C" r6 h- T% x# @& H* U1 t7 S
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Q:"How many feet are in 2 1/2 yards?5 x6 J- F& {$ }. k& \: |
A:"78"
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0 R2 N6 [+ A! W1 u0 VWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?