Nessa Chavez: As a scuba diver descends into deeper water, the
pressure of the water on the diver's body steadily increases.
The pressure at the surface of the water is 2119 pounds per square
foot (lb/ft2).The pressure increases at a rate of 64 pounds per square
foot for each foot the diver descends. Find the depth at which a
diver experiences a pressure of 9479 pounds per square foot.