Gasoline prices generally seen headed down

  SEATTLE — Washington gasoline prices rose 2.3 cents per gallon in the week ended Sunday, Nov. 27, to an average of $3.37, according to GasBuddy’s daily survey of 2,666 stations in the state.   Gas prices in Washington were 21.2 cents per gallon higher than a month earlier, but 12.2 cents per gallon lower than a…