City A has an elevation of 15,723 feet above sea level while city B has an elevation of 18,558 feet below sea level. How much higher is City A than City B?

Answer: City A is 34,281 feet higher that City B.Step-by-step explanation: You know that: - City A has an elevation of 15,723 feet above sea level. - City B has an elevation of 18,558 feet below sea level. The sea level is: 0 feet. Therefore, to calculate how  much higher is City A than City B you must add both quantities, because from the City B to the sea level there are 18,558 feet and from the sea level to the City A there are  15,723 feet. Then: 15,723 feet+18,558 feet=34,281 feet