Mario's $15,000 car depreciates in value at a rate of 27.1% per year. The value, V, after t years can Be modeled by the function V = 15,000 (0.729)t . Which function is equivalent to the original function?

1) 15,000 (0.9)3 t
2) 15,000 (0.9)2 t
3) 12,000 (0.9)t /9
4) 13,000