The equation, and explanation.

After two years, how much has been paid into interest?

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 − 24x 8,000 + 2x 8,000 − 2x

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2