唔該！幫幫忙解答我以下2個問題唔該!

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唔係好明個問題同"答案"+ _* Q4 @* M8 I7 n" [) @

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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?"/ B) I! \% T0 H2 a3 r7 w
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9 [5 I6 [, U$ w% W" ~+ jCaitlin 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."
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7 f- s* y. Q# k4 w4 O2 N3 ]# AQ:"How many feet are in 2 1/2 yards?/ {+ e1 o' j$ v* M
A:"78"/ Z' @$ T, X/ @% K
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?