When you dive below the surface of the water, the pressure increases. You can feel this in your ears when you dive to the bottom of a deep swimming pool or spring. The function that describes this relationship is P(d)= 14.5 + 29/66d, where d is the depth in feet below the surface of the water and P is the pressure in pounds per square inch (PSI). What is the pressure at the surface of the water? Select the correct units from the second box.

At what depth is the pressure exactly double the pressure at the surface of the water?Select the correct units from the second box.

What is the pressure at a depth of 66 feet? Use function notation in the first box and give the answer in the second box. Select the correct units from the third box.

What is the pressure at a depth of 165 feet? Use function notation in the first box and give the answer in the second box. Select the correct units from the third box.