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Select the correct answer.
A boat is anchored in the water. At low tide, the boat is floating 20 feet above the seafloor and is a horizontal distance of 40 feet away from its anchor. At high tide, the boat is a horizontal distance of 35 feet away from its anchor.
Approximately how high is the boat floating above the seafloor at high tide? Assume the anchor rope remains tight, without any slack.
