As the elevation above sea level increase, the corresponding air pressure decrease. A scatterplot comparing elevations, in feet, to air pressure, as a percent of sea level pressure, is shown balow.

Q. Elevations above 8,000 meters are said to be in the "death zone", a range of elevations in which oxygen levels are not high enough to sustain human life. What is the approximate air pressure (as a percent of sea level pressure) at the death zone threshold?( Note: 1 meter=3.28 feet)