Answer:
The GFC is 1
Step-by-step explanation:
Answer: 27 ft
Step-by-step explanation:
Given
the angle of elevation is 
Length of track is 
Vertical rise is given by

Answer:
3/4
Step-by-step explanation:
A ratio of the diameters is one diameter divided by the other so the miniDVD divided by the DVD = 9/12 or 3/4.