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", M: s5 ~- X+ y$ J% ]3 ?
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1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related! f3 h7 b% U: p8 u/ p3 U1 y
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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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."! P" C' ]; H  H5 X& `9 S1 b- U' @" W

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Q:"How many feet are in 2 1/2 yards?) M5 O8 t1 X3 P5 y/ q
A:"78"$ a% `! ~- f. v; n) Q

! S: }$ H: R7 u7 ^WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?