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"" k( l/ E% z0 k% l7 ?
* B7 p7 I, C, W8 V3 _$ e9 x
1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related" x5 x$ r( W# P( E) U8 [
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?"
0 O; M( e0 [3 Q' n3 c7 F* S  U( ^; T  T5 `' A8 o( b  M$ \2 i
" ]$ U0 q9 z7 ]/ e
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."( r( {  u3 R3 k: i" `$ X& p
* R8 O3 B9 Q, c+ I9 J9 ?6 `
2. http://nz.youtube.com/watch?v=itjlj6i9XFo2 o$ l  v. M; F! E# H7 N$ y# K
2 C, B% u& |: M- f/ B5 s6 G
Q:"How many feet are in 2 1/2 yards?* b1 U* L: R5 h8 q
A:"78"9 \; }/ K4 j0 U9 j! G+ m
% r* K/ ~3 _* ^: x+ Q/ S; S. Y
WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?