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"' p) l* p0 I3 l$ l% ?" }
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1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related/ X2 t; d, C. V9 D) W% h
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?"
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: U" e, G$ V) e+ w+ d/ ]% ^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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4 v1 v, A$ m* N0 h8 U/ V$ p) q2. http://nz.youtube.com/watch?v=itjlj6i9XFo
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Q:"How many feet are in 2 1/2 yards?6 Z- S) L, f& d% v$ \) l- D. l& \
A:"78"
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?