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"
9 x* `# P. f8 \0 Q1 K* Z8 E, E! ]% M8 T
1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
- S: {! |+ k9 T: ~# E; \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 T! J& b  E% u2 k
  ^! [' v: \: s4 p4 F% {' Z) h+ f# }" `5 K. f
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."2 s$ I: `; |/ U# a! Q
  ~! D7 D8 l3 Y& q5 ~
2. http://nz.youtube.com/watch?v=itjlj6i9XFo
- W/ R- }/ v+ \3 ]# z. E6 L4 C( J" U0 N: h
Q:"How many feet are in 2 1/2 yards?
: P' R! @- I2 ?A:"78"
( L6 j+ B# X4 ?/ U' p6 }1 {4 H6 Y, _5 S( k' P% _  l! x3 o& {# K
WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?