At noon, the temperature at a mountaintop research center is 11 degrees. Overnight the temperature drops to -19 degrees. Which e
xpression represents how much the temperature changed? A. (191 B. |-191 C. |-301 D. |-381 if anyone wants to answer my last 2 questions I would really appreciate
My answer is correct because, All you have to do is subtract all the numbers by 11 and the one that has the sum -19 is the correct choice. In this case -30 does and we can make sure were orrect by subtracting 11 by -19 and that equals -30.