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"( s3 Y7 I' ~/ Q! X! j

2 @+ k# `; E+ R6 d( s$ w1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related' I& X" e) m0 j' {' O3 A: E( v4 M0 |
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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7 }0 [6 X* I9 l1 l0 e' N: v% e" JCaitlin 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=itjlj6i9XFo  v  \7 X! U6 T- T
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Q:"How many feet are in 2 1/2 yards?$ }; }' }7 I4 M
A:"78"0 Y/ V  o5 s9 j
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?