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"! p& Z  F1 H& L

; N3 y( v) N, |6 t. H$ p* r1 _1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
5 Q# g7 U5 W" R5 Q0 ^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?": B! f# E/ p( N0 W
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% C5 I9 P2 H# NCaitlin 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=itjlj6i9XFo9 l; l9 C" W7 B) T8 w' C
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Q:"How many feet are in 2 1/2 yards?7 V7 O% R/ Z3 k$ `: a
A:"78", ~. y. H7 {0 s3 r' n5 n/ i$ ?& Y

, W2 |1 ^0 o$ b; f' C$ N$ z9 {WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?