Solve.The temperature on a December morning is -5°F at 7 a.m. If the temperature drops 3° by 8 a.m., rises 8° by 9 a.m., and then drops 6° by 10 a.m., find the temperature by 10 a.m.
A. -6°F
B. 6°F
C. 22°F
D. -22°F
Answer: A
Mathematics
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