The base is 5 because when you divide 31.5 by 6.3 it's 5
Answer:
The answer is already in the question. The coordinates of the entrance to the Mount Rushmore parking area are given by latitude 43.8753972 and longitude -103.4523083.
Step-by-step explanation:
I believe the person asking the question wants some other detail that s/he did not state explicitly.
This would be 10-2 which would equal 8
The 3rd answer, is correct.