Answer:
0.06245
Step-by-step explanation:
Decrease 7/12=0.583 
from 9 p.m to 6:20 am is 9:20= (9+20/60) = 9.33 hours 
0.583/9.33 = 0.06248
round the 0.06248 to 0.06245
 
        
             
        
        
        
Answer:
The max altitude you can operate an sUAS on these given conditions is 1400ft AGL. 
Step-by-step explanation:
 
        
             
        
        
        
9/20
45% is 0.45. To switch into a fraction you do 45 over 100, simplified is 9/20.