The kilopascal is a unit of measure for atmospheric pressure. Suppose the atmospheric air pressure at sea level is about 96 kilopascals. For every​ 1000-m increase in​ altitude, the pressure decreases about 11.9​%. What is the approximate pressure at an altitude of 2000 ​m?

Answer 1

1.000 - .119 = 0.881
96 * (0.881)^n
where n is the number of 1000 meters we climb
Oh, look, that pesky geometric sequence again :)
96 * .881 * .881 = ?

Answer 2

Thank you