Answer:
The right answer is "50.48°F".
Step-by-step explanation:
The given values are:
Temperature at 3000 feet,
= 72°F
Temperature change for 1000 feet,
= 5.38°F
Normal lapse rate,
=
Change in elevation will be:
=
=
hence,
The temperature change for 4000 feet will be:
=
=
The temperature change for 7000 feet will be:
=
=