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"- g0 Q8 z) G1 _

( v# [$ }9 ^9 a) f( h1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
* u1 r% M! S4 hAimee 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?"- E% T) C# N0 O. D

! f) C* B7 a. v$ d" }$ ?1 l+ k1 ]9 m( k  V' A+ ^) a4 U; O# ~% O
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."
* n! M* d& k3 {6 n+ r% N/ b; P4 b$ u6 x. u8 I$ ?
2. http://nz.youtube.com/watch?v=itjlj6i9XFo
( x+ m  Q+ i1 P$ q! \
1 r$ ?' \2 B6 t& r( s' _Q:"How many feet are in 2 1/2 yards?
- F6 ~0 {9 O1 zA:"78"9 H! t! U4 a5 R3 m3 i, a- ^
" p; a: z& a7 j  S& ^( w
WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?