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"
8 k" w) O# b: k1 r: k
" p$ z' C' ~* S/ i- o  ]1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
4 ]- B. }/ j5 m. r; NAimee 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?"
6 Y0 {' ^) z9 F( _6 [0 s6 t+ u2 f/ h  ~- Y' R8 g
) q. L/ q* q: B0 _) U
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."
; g% o+ f, G6 d3 ?
9 Z! x" s4 W" I/ V2. http://nz.youtube.com/watch?v=itjlj6i9XFo
( j" U, z9 A4 T
! f! ?' K! v0 a) ?Q:"How many feet are in 2 1/2 yards?: X0 v1 f* P' ^/ W/ w4 X0 B
A:"78"' C: _& a- g- g4 M

0 v) z* U% O5 \% h5 UWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?