To find how much the car's value decreases per month, you need to divide the total decrease in value by the number of months.
The car's value decreases by $4,000 in the first 12 months. Therefore:
\[ \text{Decrease per month} = \frac{\text{Total decrease}}{\text{Number of months}} = \frac{-4000}{12} \]
Calculating this:
\[ \text{Decrease per month} = -333.33 \]
So, rounding to the nearest hundredth, the value decreases by \(-$333.33\) per month.
The correct response is \(−$333.33\).