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 8.70% sales tax rate in Bellingham consists of 6.50% Washington state sales tax and 2.20% Bellingham tax. There is no applicable county tax or special tax. You can print a 8.70% sales tax table here. For tax rates in other cities, see Washington sales taxes by city and county.