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% .
Numerous local sales and use tax rate changes are scheduled to take effect in Washington on April 1, 2017. Municipal rate changes (with new total rates) The local rate in Kalama will increase by 0.1% to raise revenue for criminal justice and public safety (7.9%) The rate for the retail sale and lease (first 36 months) of motor vehicles remains 7.8%