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 I( u! r2 ^/ p' _( _

( @9 Y$ F& Y. M/ K8 E% z1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
/ I1 a! G+ Y; Z# C0 V" V& M; g4 `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?"7 c" F+ G# y% @% c& w+ _

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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."7 U  y# V2 A! }& h2 e( E# C' X
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2. http://nz.youtube.com/watch?v=itjlj6i9XFo9 R) l2 r3 s1 s$ ?

9 C0 \$ k9 p$ |7 W" i7 ^Q:"How many feet are in 2 1/2 yards?$ L5 R3 W# F8 H0 ]+ Z# Y7 `
A:"78"+ F/ Y: J# o. x  @  S3 R

' ^! B& T+ m% w* s& ZWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?