The taxes are figured as follows: 0.089(value of car)
Here the taxes are 0.089(value of car) = $1100.
Divide both sides of this equation by 0.089 to determine the value of the car.
value of car = $12359.55, or approx $12360.
There is a nice graphing calculator at desmos.com. Here are some screen shots from it.
1.a 2.b 3.c ,cout the individual lines in the middle to get the answer