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"
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. s+ q$ y) t* }& K# q4 ~1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
7 P! H. X6 S2 D) K/ B: |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?") A) r8 l$ N; {

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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."; c# U- S& `+ u: M$ e9 v- ~8 p9 D1 \& J
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2. http://nz.youtube.com/watch?v=itjlj6i9XFo3 l3 q& \4 x' F% r0 V4 n8 b

; z+ b" l7 ]; K% \( W% k2 jQ:"How many feet are in 2 1/2 yards?" D' B7 N( O* ?5 }
A:"78"
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?