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"
$ T3 z7 |8 P/ O  `$ y4 O
; I. p% o- i$ u: ~5 G0 ?: m- q7 j1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
+ M" G% O1 ?1 I5 K/ 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?"0 U5 g# M" b+ g( e& k8 \; Q' g
7 B% p+ h7 Z$ i

4 f5 `8 N* o! ?+ p: @+ y6 ?7 p8 G7 ?# mCaitlin 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."9 O6 p" P" O8 p! C1 g7 c
; \/ t" }% q7 Y# ]8 A
2. http://nz.youtube.com/watch?v=itjlj6i9XFo7 }5 y4 e: j7 D' I2 A

+ w( l1 u* I, |Q:"How many feet are in 2 1/2 yards?/ ?7 @  S* C+ q" ?7 Y
A:"78"+ A9 Y$ Y9 p" _

" f$ a$ A# Y% a. {, uWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?