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Solve the problem.
-The temperature at 5:00 was -3° C. Four hours later, it was -9° C. What was the change in temperature?
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The process of choosing words thoughtfully to convey a specific meaning or tone effectively.
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The process of interpreting and understanding communication signals or encoded messages.
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A mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship.
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