Answer:
The answer is 4. 10m+50=200
Explanation:
4.
1. 1 isn't right because he doesn't get $50 a month.
2. See 1.
3. This isn't right because you wouldn't subtract the $50 from 10m.
4. This is right because the total of months plus the 50 will get him to 200.
3.2m questions
4.1m answers