4. Edward started his hike in a canyon at an elevation of 115 feet below sea level. Throughout the hike he ascended 3,200 feet and then descended 676 feet before completing his hike. How much did his elevation change?

Acafeteria manager can choose from among six side dishes for the lunch menu: applesauce, broccoli, corn, dumplings, egg rolls, or french fries. he used a computer program to randomly select three dishes for monday's lunch. what is the theoretical probability the applesauce and broccoli will both be offered monday?