Answer: $700
Step-by-step explanation:
Based on the information given in the question, if the roommate sues the student for the damage caused to the computer, the extent of his recovery will be $700.
In this scenario, the student has committed a conversion as the right of possession of the roommate's computer was interfered with by the student as he took it without the roommate's permission, which later sustained damage that was more than 70% of the computer's value. In such case, the extent of the recovery will be the fair market value which is $700.