Pre-Algebra Quiz
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NUMBER SYSTEM & OPERATIONS
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A weather station records temperature changes over four hours. The temperature drops 3.5°F3.5°F in the first hour, rises 2.25°F2.25°F in the second hour, drops 4.75°F4.75°F in the third hour, and rises 1.5°F1.5°F in the fourth hour. If the final temperature is −2.5°F-2.5°F, what was the initial temperature?
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