Country C imposes a two-tiered tax on imported cars: the first tier imposes a tax of 12% of the car's price up to a certain price level. If the car's price is higher than the first tier's level, the tax on the portion of the price that exceeds this value is 9%. If Ron imported a $18,000 imported car and ended up paying $1950 in taxes, what is the first tier's price level?  Choose the most appropriate option.
A) $ 11500	B) $ 11000	C) $ 12000	D) $ 12100	E) $ 12500

Rationale: let t be the tier price , p be total price = 18000 per the given conditions : 0.12 t + 0.09 ( p - t ) = 1950 0.12 t + 0.09 * 18000 - 0.09 t = 1950 0.03 t + 1620 = 1950 0.03 t = 1950 - 1620 = 330 t = 330 / 0.03 = 11000 answer b
Answer: B