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"
! d1 C4 r7 g6 i1 B& H8 `
( A# B, W! L7 u' b# h9 b/ W1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
# b( m3 ?% L% \$ J6 PAimee 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?"
" M+ C9 R9 ^7 d  {8 l" ?7 O
3 _; e! f* \; ~" g
( U+ n! x' d" TCaitlin 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."0 u, ^0 \6 ~1 j( p* M" m

9 D! Z% l2 j7 a. t7 q2. http://nz.youtube.com/watch?v=itjlj6i9XFo7 i) ~/ V  z( O( d3 \$ o$ f
; o" n2 w; M+ o7 [
Q:"How many feet are in 2 1/2 yards?
/ h9 a8 c% c. R' V5 n* AA:"78"$ T0 t. K) g2 `$ c0 K' L
$ D( ]( M5 o6 R; n
WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?