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 X4 h8 S4 s% C+ f
  Z1 L! g0 H7 L1 }/ T
1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related( [, n( q# p3 ]( y/ @2 b) d. i
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?"9 G4 F( K+ Z/ m  `
6 L# V! s) j& b) T
: w0 p* }( v5 z7 ^( x3 I) d
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."
+ `6 k. ?/ o) }. D( {3 [5 ]8 Q, t6 u4 o" I" _1 H. z2 E" i: r
2. http://nz.youtube.com/watch?v=itjlj6i9XFo, Z4 ~8 y$ w$ }4 l

! L9 ?2 U1 A8 lQ:"How many feet are in 2 1/2 yards?3 W8 c, u* ]3 G3 p: X
A:"78"
: t  z: ?1 B- i
2 S: i6 p. C+ AWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?