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What is true about multiplying and dividing with signed numbers?

  1. Signs are alike, the answer is positive

  2. Signs are different, the answer is positive

  3. Signs don't affect the result

  4. Signs are alike, the answer is negative

The correct answer is: Signs are alike, the answer is positive

When multiplying or dividing signed numbers, if the signs are alike (both numbers are either positive or negative), the answer will be positive. This is because when you multiply or divide numbers with the same sign, the result will always be positive. Conversely, if the signs are different, the answer will be negative. This is why option A is correct for this question. The other options are incorrect: B. If the signs are different, the answer is not positive when multiplying or dividing signed numbers. C. Signs do affect the result when multiplying and dividing signed numbers. D. If the signs are alike when multiplying or dividing with signed numbers, the answer is not negative.