For a class project, jina made a model of the empire state building that was 23.7 centimeters tall. her friend caleb made a moel that was 23 3/5 centimeters tall. whose model was taller? how much tall was it?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point