shop sells hardcover copies of a book for $18 and paperback copies for $12. The owner wants at least $300 in sales of the book today. Which inequality shows the number of copies that must be sold? O A 18x+12y > 300 OB 18x+12y < 300 OC 18x+12y ≥ 300 D 18x+12y ≤ 300

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