A company employee has been working hard to earn credits towards her company's rewards program. She currently has 25 points and needs to have at least 400 points in order to earn the reward option she wants. Each week, she earns 50 more points.
Determine which inequality could be used to determine the number of weeks, x, it will take the employee to reach at least 400 points.

25x + 50 ≥ 400 50x + 25 ≤ 400 50x + 25 ≥ 400
25x + 50 > 400 50x + 25 < 400 50x + 25 > 400

What is the minimum whole number of weeks it will take the employee to have enough points for her reward?

7 weeks 8 weeks 9 weeks 14 weeks