Quadri-, quadru-, quadr-is a Latin prefix related to the verb quadrare âto make squareâ, quadratus âsquareâ etc. Quad is simply an English shortening of quadrangle, quadruplet etc. So quadri-and quad are actually the same word.
Seattle, WA Sales Tax Rate. The current total local sales tax rate in Seattle, WA is 9.600% . The December 2014 total local sales tax rate was 9.500% .
6.5% is the smallest possible tax rate (98060, Seattle, Washington) 10% are all the other possible sales tax rates of Seattle area. 10.1% is the highest possible tax rate (98101, Seattle, Washington) The average combined rate of every zip code in Seattle, Washington is 9.699%. Other 2018 sales tax fact for Seattle