What did Annabeth reveal to Percy?'

Annabeth tells him that he is half-human, half-god. "Your father isn't dead, Percy. He's one of the Olympians" (7.24). Annabeth tells Percy that her dad is a human – a professor of American History at West Point.

Explanation:

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.

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