To find the monthly decrease in the car's value, you can divide the total decrease in value by the number of months. The car's value decreases by $4,000 in 12 months.
The calculation is:
\[ \text{Monthly Decrease} = \frac{\text{Total Decrease}}{\text{Number of Months}} = \frac{-4000}{12} \]
Calculating that:
\[ \text{Monthly Decrease} = -333.33 (repeating) \]
So, rounding to the nearest hundredth, the monthly decrease in the car's value is \(-333.33\) dollars.
The correct response is:
−$333.33