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Math·Advanced Math·Nonlinear functions

easy

The equation $y=7,200(0.85{)}^x$ estimates the value $y$, in dollars, of a certain car $x$ years after it was purchased. According to the given equation, what was the estimated value, in dollars, of the car at the time it was purchased?

A

$720$

B

$6,120$

C

$7,200$

D

$8,500$