At noon, the temperature at a mountaintop research center is 11 degrees. Overnight the temperature drops to -19 degrees. Which expression represents how much the temperature changed? A. |19| B. |-19| C.

At noon, the temperature at a mountaintop research center is 11

degrees. Overnight the temperature drops to -19 degrees.
Which expression represents how much the temperature
changed?

A. |19|
B. |-19|
C. |-30|
D. |-38|

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At noon, the temperature at a mountaintop research center is 11 degrees. Overnight the temperature drops to -19 degrees. Which expression represents how much the temperature cha…

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