A diver begins at sea level and dives down 200 feet. He ascends at a steady rate of 12

1
3
feet per minute for 4.5 minutes. This depth is represented by the numerical expression:

     -200 + 12
1
3
(4.5)

Simplify the expression using the order of operations. What is the diver’s depth?

     -200 +
37
3
(4.5)

    -200 + 55.5

feet

The diver's depth after ascending for 4.5 minutes is -144.5 feet.