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"
4 U& O) C- e6 |* d8 N+ r
" y! K3 p- i5 S7 J1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related+ L2 G! D$ I" r* W3 B' \' p) x
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?"- U1 _/ w# w$ Q: V
, c1 K% j. j0 Z8 t2 j
7 l1 u7 D( [! X9 g3 ~* E3 `
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."
5 P9 Q1 y. ^6 W- h
) W6 r6 F' x) x2. http://nz.youtube.com/watch?v=itjlj6i9XFo6 h; S/ Z) l1 Y" G  W  ]" I
- R! j+ {) v& `
Q:"How many feet are in 2 1/2 yards?6 f" L& p, l# C
A:"78"
5 N* i5 h: }$ e8 L, m% N* K0 ?3 a4 Y# G4 H; z- v
WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?