Equation:
a  =   5120 Â
r   =   1  +   .2   =   1 . 2
f (n ) Â = Â Â 5120 * Â 1 . 2^n - 1
N Â Â = Â Â Â Â Â 4 Â Â Â years
f ( 4 ) Â 5120 * Â 1 . 2^4 - 1
5120 * Â 1 . 2^3
We want to know, The number of Highway Accidents in Four Years.
Answer: Â Â 8,847 Highway Accidents total:
Hope that helps!!!!!!!!!!! Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â : )