9. The water level is 3 feet below your dock. The tide goes out, and the water level lowers 1 foot. A storm surge comes in, and the water level rises 2 feet. Write an integer to indicate the new water level
We know that that the water level is 3 feet below your deck. (-3) When the tide goes out, the water level lowers 1 foot. (-1) A storm surge comes in, the water level rises 2 feet. (+2)
New water level: -3-1+2= -4+2= -2 The new water level is 2 feet below the dock.
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