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To predict the selling price of a 12 year old Toyota Corolla using the given linear model, we substitute x = 12 into the equation:
y = -624.1(12) + 11,593
y = -7489.2 + 11593
y = 4103.8
Therefore, the predicted selling price of a 12 year old Toyota Corolla using the linear model is $4,103.80.