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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! f/ \* p0 h! u& V* j1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related8 l4 o$ o8 R1 X; b6 T$ N# j
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?"; w' E. r8 W4 z, U% ?. A
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* u2 y' {" J* h5 BCaitlin 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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/ @+ J1 M. b" Q# h: [7 u* u, v- i2. http://nz.youtube.com/watch?v=itjlj6i9XFo
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6 J8 w2 L8 Z1 G4 g, ^Q:"How many feet are in 2 1/2 yards?
9 K8 w5 f: m& z' _; u7 {: jA:"78"
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?