1: -6 < r < 5; NOT SUFFICIENT because it does not give any information about w.
2: 6 < w < 10; NOT SUFFICIENT because it does not give any information about r.
Combined: NOT SUFFICIENT because the information is too broad. We know that w is a positive integer, but we do not have any information to determine if r is 0 or a different integer. Therefore, the answer is E.
1 Explanation