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.
The Washington state sales tax rate is 6.5% , and the average WA sales tax after local surtaxes is 8.89% 1  . Groceries and prescription drugs are exempt from the Washington sales tax. 2  Counties and cities can charge an additional local sales tax of up to 3.1%, for a maximum possible combined sales tax of 9.6%.
Preparing your download. Wisconsin Tax Rates. The Wisconsin (WI) state sales tax rate is currently 5%. Depending on local municipalities, the total tax rate can be as high as 5.6%. Other, local-level tax rates in the state of Wisconsin are quite complex compared against local-level tax rates in other states.