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A fireman-stood on the middle step of a ladder directing water into a burning building. As the smoke diminished, he climbed up 4 steps

A fireman-stood on the middle step of a ladder directing water into a burning building. As the smoke diminished, he climbed up 4 steps and continued his work. The fire got worse, so he had to go down 8 steps. Later, he climbed up the last 9 steps and was at the top of the ladder. a. How many steps were on the ladder? Show your strategy. b. If the building was 5 stories tall, would he be able to rescue someone trapped on the top floor using just this ladder? Explain. and the third

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