One is the letter, A,B,AB, or O. This is the major part of the blood type. The other or minor part is the Rh type, which the A,B,AB, or O part is either positive or negative. Let me explain. The A or B or AB part of the blood type is called an antigen.
The District of Columbia state sales tax rate is 5.75%, and the average DC sales tax after local surtaxes is 5.75%. Washington, DC recently lowered the district sales tax by a quarter of a percent from 6% to 5.75%. The District of Columbia's sales tax is imposed on all sales of tangible property as well as on certain services. There is an additional sales tax of 9% on liquor and alcohol, 12% on parking fees, 10% on restaurant meals and rental cars, and 14% on hotel fees.
Washington benefits from being surrounded by Idaho and Oregon, both of which have corporate income tax rates above 7% and individual income tax rates above 7%. In fiscal 2012 the sales tax made up 64.7% of revenue while the gross receipts tax contributed 17.6%.