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"; n6 F5 u3 K1 }  Z2 l1 }+ @

: [: u+ k& v) o4 G* h% M1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
+ o% g4 u: V. @% F; EAimee 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?"4 U2 H9 F& u. h
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8 D6 V( {! z9 HCaitlin 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."+ B+ p. [- u* F8 \+ W: W: f

( o4 m8 ^) y5 Z2. http://nz.youtube.com/watch?v=itjlj6i9XFo* b; Y; ?3 u7 O& b- p7 ^
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Q:"How many feet are in 2 1/2 yards?+ p/ {- t. j. [4 S. q" j$ v
A:"78"/ W/ x4 x) U9 a2 [& q' V# s! g
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?