If a > b and m < 0, then which of the following is correct :

1. am < bm
2. am = bm
3. am > bm
4. am and bm cannot be compared

The solution set of the inequality 17 - 4x < 7, x ∈ Z is

1. {1, 2, 3, ……………}
2. {2, 3, 4, ……………}
3. {3, 4, 5, ……………}
4. {4, 5, 6, ……………}

Which one of the following is not a solution to the inequality 2x > 18 - 5x?

1. 7
2. 5
3. 3
4. 1