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Answers to Problem 5:

1. A positive (a) times a negative (b) = a negative number.  The answer to this problem is <0.
2. A negative (b) divided by a positive (a ) is a negative answer.  The answer to this problem is <0.
3. A negative (b) divided by a negative (b) is a positive answer.  The answer to this problem >0.
4. A positive (a) times a positive (a) is a positive number.  The answer to this problem is >0.
5. A positive (a ) minus a negative (b) changes to a positive being added to a positive resulting in an answer that is positive.  The answer to this problem is >0.
6. A negative (b) minus a positive (a) becomes the problem of a negative plus a negative resulting in a negative answer.  The answer to this problem is<0.