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"/ D( b8 s/ L/ w

) A* |* B; R4 Y1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
: O) v* v6 l+ Z. {+ n7 F) B" i, g5 NAimee 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?"4 w1 Z5 S5 C: u( c# ^
: g: k! t: L$ o9 E

# |6 A4 b: X7 k( ]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."
1 y% B* x4 S1 t$ z
/ i3 F( p: f: A* ^$ J4 y1 r7 v2. http://nz.youtube.com/watch?v=itjlj6i9XFo
& L2 u: J) s) H2 M( q( l: }+ R7 G* A6 a6 r$ ^& y! Y+ d
Q:"How many feet are in 2 1/2 yards?7 j0 p$ Y1 ]/ K" j% M
A:"78"6 h4 E, H2 f$ R7 a
; B. Q' H* D5 U* u) y$ d0 p
WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?