I think it needs to rise 756 feet since 756 feet below sea level can be thought of as -756 feet above sea level and the serface is 0 feet above sea level. -756feet+756feet=0feet
First, we need her speed as it will serve as the slope of the equation. Distance = 2 km time = 18 min Speed = 1/9 km/min k = (1/9)t Where k is the distance in km and t is the time in minutes.
