10 less than a number is the same number doubled. What is the number?

How did the voting rights act and the 15th amendment combine to improve individual rights for african americans

Why was it difficult fpr unions to succeed in the 1800s

What does the quote describe? “the closeness of the place, and the heat of the climate, added to the number in the ship, which was so crowded that each had scarcely room to turn himself, almost suffocated us….the shrieks of the women, and the groans of the dying, rendered the whole a scene of horror almost inconceivable.”