At approximately what altitude above the surface would be pilot expect the base of cumuliform clouds if the surface air temperature is 82f and the dew point is 38f:
a) 8,000 feet agl
b) 9,000 feet agl
c) 10,000 feet agl
d) 11,000 feet agl

10,000 feet AGL

Explanation:

Hi so we have that the difference of temperature is 82°F – 38°F = 44°F

Now we have that  temperature/dew point spread

So replacing the data we obtain 44°F/4.4°F = approximately 10,000 ft. AGL.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

the total distance traveled by the car is

30km + 49km = 79 km .