唔該！幫幫忙解答我以下2個問題唔該!

xylitol25

唔係好明個問題同"答案"
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8 I; ]$ R# V/ g7 b& v0 t/ c! i1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
! o/ l% C: c/ T/ Z# b! j' y% _& fAimee 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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. Y; a- K9 G; P" h: m* _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."( e; c" K3 N* W! r5 ~

1 x8 [) Y) ~& n2 I; r4 t2. http://nz.youtube.com/watch?v=itjlj6i9XFo/ D# |+ D/ b1 ]5 r$ q& K1 K
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Q:"How many feet are in 2 1/2 yards?0 s2 J8 I- H# B7 c% v8 X% }
A:"78"
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?