Answer:
B.


Explanation:
Let t represent the number of hours Joanne tutors and r represents the number of hours Joanne works as a receptionist.
We have been given that Joanne is only able to work up to 25 hours per week. This means t and r will be less than or equal to 25. We can represent this information in an inequality as:

We have been given that Joanne tutors for $25 per hour. So earnings from t hours of tutoring would be
.
She also works as a receptionist for $12 per hour. So earnings from r hours as receptionist would be
.
Since Joanne must earn at least $200 per week, then earnings from t hours of tutoring and r hours as receptionist must be greater than or equal to 200. We can represent this information in an inequality as:

Upon looking at our given choices, we can see that option B is the correct choice.