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% .
The combined sales tax rate for Bellevue, WA is 10%. This is the total of state, county and city sales tax rates. The Washington state sales tax rate is currently 6.5%. The King County sales tax rate is 0%. Bellevue sales tax rate is 3.5%.