You bought a new car for $18,500 in 2005, and the value of the car depreciates by $700 each year. Find a formula for $V$, the value of the car, in terms of $t$, the number of years since 2005.

$V(t) = \ $
(Be sure NOT TO USE ANY COMMAS when you enter your formula. For example enter two thousand as 2000 and not as 2,000.)