Question

Suppose there is a 2.1°F drop in temperature for

every thousand feet that an airplane climbs into the sky. If the
temperature on the ground is 68.0°F, what will be the temperature
when the plane reaches an altitude of 12,000 ft?

Answer 1

It would be 42.8

How I got this answer :

Every thousand feet is 2.1 and then times that by 12 giving you 25.8 ( 2.1 x 12 = 25.2)

So now you will get the original temperature (68.0) ( 68.0 - 25.2 = 42.8)

And thats your answer