Final answer:
To express the plant manager's need for a minimum of 66,000 screams a day as an inequality, the symbol '≥' (greater than or equal to) is used with the quantity 66,000.
Explanation:
To write the plant manager's requirement as an inequality, we use the symbol '≥' (greater than or equal to) because they need at least 66,000 screams a day. Therefore, the inequality would be: x ≥ 66000, where x represents the number of screams per day.
Learn more about Inequalities in Mathematics here:
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