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.
Washington does not allow local jurisdictions like cities or counties to collect a local sales tax. The Washington state sales tax of 6.5% is applicable statewide. You can view the sales tax rates for various cities in Washington here.
(a) City, county and municipal rates vary. These rates are weighted by population to compute an average local tax rate. (b) Three states levy mandatory, statewide, local add-on sales taxes at the state level: California (1.25%), Utah (1.25%), Virginia (1%), we include these in their state sales tax.