The point (3, 18) most likely represents C. In 3 hour, 18 inches of snow fell.
The x value is the independent variable and in most cases, time is the independent variable.
This means that the 3 in this case is most likely a time value which is why option C is best.
This then means that the 18 is inches of snow which means that the correct representation of (3, 18) is In 3 hours, 18 inches of snow fell.
Find out more on time as an independent variable at https://brainly.com/question/12727888.
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