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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1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
3 _  T8 m' D8 I( A" h/ Y/ Z$ |- ZAimee 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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+ V) v. p; i; A& n& cCaitlin 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."- X$ m2 y: t, c, O4 s3 \
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2. http://nz.youtube.com/watch?v=itjlj6i9XFo* t. ?& z1 Z# D# E
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Q:"How many feet are in 2 1/2 yards?' c7 Z  H5 B6 F/ J
A:"78"
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?