Suppose a utility considers demand for electricity "low" if it is below 5 mkW (million kilowatts), "average" if it is at least 5 mW but below 10 mkw, "high" if it is at least 10 mkW but below 40 mkw, and "critical" if it is 40 mkW or more. Express these demand levels in interval notation. (low,
average, high, and critical).
Interval notation means using a pair of numbers (A, B) or (A, B) or (A, B] or [A, B] (the choice of parenthesis or bracket is a function of the
inclusion or not of A and B in the solution)
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