are a group of fish that are ornamental varieties of domesticated common carp (Cyprinus carpio) that are kept for decorative purposes in outdoor koi ponds or water gardens. Koi varieties are distinguished by coloration, patterning, and scalation....
Of course, at the pump, youâll also tack on that 18.3 cents per gallon federal gas tax. Since tax is included in the price you actually pay, it looks like this: $3.49 (what I paid at the pump on yesterday in Pennsylvania) = $.183 in federal gas + $.323 in PA state taxes + 2.984 as the âpriceâ of my gas
1 The Federal fuel tax on a gallon of gasoline is $0.184 per gallon, but if the gasoline is blended with alcohol, additional Federal fuel tax rates may apply. See IRS Publications (510) for more information.  The Oregon state fuel tax on gasoline is $0.30 per gallon.