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Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who has hooked a fish that is 10 meters below the surface of the water.



​a. Use positive and negative numbers to represent the locations in relation to sea level.

​Scottie =
30




​Top of the lighthouse =




​The boat =




​The fish =
−10




​b. How far is Scottie from the fish?
meters.