1. a scuba diver is swimming around a coral reef 12.25 meters below sea level. he ascends (swims upward) 8.5 meters to look at a sea turtle. write an expression to describe the situation. what is his new position? explain how you wrote the expression and solved the problem.

2. a scuba diver is 9 1/2 feet below sea level viewing some tropical fish. she descends (swims downward) 10 1/2 feet to get a closer look at a manta ray swimming on the sea bottom. write an expression to describe the situation. what is her new position? explain how you wrote the expression and solved the problem.