Answer:
Step-by-step explanation:
It is given that a railroad track rises 30 feet for every 400 feet of track.
Thus, from the figure, we have
AB=30 feet and BC=400 feet
Therefore, using the trigonometry, we have
Thus, the measure of the angle of elevation of the track is .
i believe the answer is $0.22 per pound.
hardd sorry
Step-by-step explanation:>..