Answer:
146 pounds
Step-by-step explanation:
He starts at 156 pounds.
1st week: He loses 4 pounds, indicating 156 - 4, or 152.
2nd week: He gains 2 pounds, indicating 152 + 2, or 154.
3rd week: He loses 5 pounds, indicating 154 - 5, or 149.
4th week: He loses 3 pounds, indicating 149 - 3, or 146.
