The average temperature in NC in January was 13 degrees Celsius. If the average temperature was 28 degrees colder during February, what was the average temperature during February?​

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step-by-step explanation:

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take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

answer: your answer is a