You bought a used car for 18,000. The value of the car will be less each year because of depreciation at the rate of 12% per year. Write an exponential decay model to represent the situation and estimate the value of your car in 8 years.
C= starting value | I= decreing interest | x= year
C(1-i)^x
18000(1-0.12)^8
18000(0.88)^8
18000(0.3596...)
$6473.42
+208 
