your order.

a$.$ What is the current bid$/$ask spread for Berkshire Hathaway Class A shares?

b$.$ If Scottrade routes your buy order to the NYSE, where Berkshire Hathaway is listed, what's the potential minimum your total transaction costs will be$?$

c$.$ If$,$ instead, Scottrade routes your buy order to NASDAQ, where Berkshire Hathaway is not listed, what's the potential maximum your total transaction costs will be$?$

d$.$ Regardless of how your trade is executed, based on the bid$/$ask spread, what is the market value of your trade?

a$.$ The current bid$/$ask spread for Berkshire Hathaway Class A shares is $?$

$($Round to the nearest dollar.$)$