2.485 is round to 450 and 450 divide by 15 equals 30. 485 divide by 15 32 r 5
Birmingham and Montgomery both have a state sales tax rate of 4 percent and a local tax rate of 6 percent – although the report notes that part of Birmingham lies in Shelby County, meaning the combined rate is only 9 percent in some parts of the city.
Answer: The answer would be f^-1 (x) = x/2 - 3/2
