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"
/ Q3 F7 H* D3 T/ k3 w
! \; f$ |3 F0 _$ x% W. |/ L- H1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
& @$ g. t' p. 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?"$ ?. @5 a6 D1 Q) T7 c) k- `4 O

2 b4 M$ G1 h' M8 X! z/ S
  y' M( g: [  l: Z! u0 RCaitlin 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."4 I  G9 n% \9 W9 P
, o2 F/ A3 h4 E1 d- @) ^8 d; {! F
2. http://nz.youtube.com/watch?v=itjlj6i9XFo
3 h  r0 U! x1 t1 V$ j- I
; A, @' W" ~) A1 `' nQ:"How many feet are in 2 1/2 yards?% e/ I5 I/ R; x! }* e
A:"78"  W9 N) b, c1 F

$ B% d# T+ `9 E2 `) j* N; E+ bWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?