In the equation S = 130 - 2T, where S is hot chocolate sales and T is temperature, sales:
A) increase by 20 if temperature increases by 10 degrees.
B) increase by 2 if temperature increases by 10 degrees.
C) decrease by 20 if temperature increases by 10 degrees.
D) decrease by 2 if temperature increases by 10 degrees.
Correct Answer:
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