When ice floats in water approximately 8/9 of the height of the ice under water. If the tip of the iceberg is 23 feet above the water how deep is the iceberg below the water line

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?