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"( _7 e8 f7 ]7 U5 M6 L5 r7 t

3 m2 R# |$ W- h( h6 e1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
; d" }  b, ?9 w7 l! }9 O+ bAimee 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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& M& I. c% j- ~9 }- y3 @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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/ D* L3 g; P/ ]1 y1 H4 c2. http://nz.youtube.com/watch?v=itjlj6i9XFo2 G- r; _5 V; G' P: I" o
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Q:"How many feet are in 2 1/2 yards?5 l' h9 n0 F/ L: l
A:"78"
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- i7 l1 j  B0 f5 S4 ]WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?