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"1 L+ c1 u: l& n% w, o

1 }3 ^2 N( f( ^& g1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related0 N% _/ m5 N) e) l
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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" b9 i% D+ o' M' c$ rCaitlin 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."7 f5 t/ _3 U: ]( p5 v0 f

9 o/ X9 |6 R9 h2. http://nz.youtube.com/watch?v=itjlj6i9XFo# u4 u6 ?) I' s3 {& I& l( d1 _1 N

4 l( t  g9 [6 W' N/ t: a+ v% l7 j, xQ:"How many feet are in 2 1/2 yards?/ t6 ]" `- s" m5 r5 a& ?
A:"78"& V" L* y+ o7 ]3 k2 l# J) ^$ S

# z4 ?6 W, I- }( B9 I* qWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?