Fred works as an
underwater photographer. He
starts at a depth of 20 feet
ascends 9 feet descends 12
feet, and then ascends 15 feet
more. What is Fred's location
underwater?
so he already down 20 ft so he ascends (goes up) 9 feet, so hes at 11 feet right now. then he descends 12 (goes down) feet so hes at 23 feet. lastly he ascends 15 feet (goes up) more. so the answer is 8
