After swimming 80 feet below the surface of the water, a whale swims up 40 feet. Use a number line to help you create an equatio
n that shows the new location of the whale in relation to the water's surface. A) The equation is -80 + (-40) = -120. The whale is 120 ft below the water's surface. B) The equation is -80 + 40 = -40. The whale is 40 ft below the water's surface. C) The equation is -80 + (-40) = -40. The whale is 40 ft below the water's surface. D) The equation is -80 + 40 = -120. The whale is 120 ft below the water's surface.
