87
You can add up the angles that are labeled(73,110,and 90 because of the right angle) and get 273. 
For a quadrilateral, all of the angles add up to 360. 
So, subtract 360-273. 
You get 87. 
Hope this helps:)
        
             
        
        
        
Step-by-step explanation:
volume of cylinder formula pi*r²*h
radius of 9cm is 4.5 as 9/2
so 4.5²*15 is 303.75cm
303.75*pi is 303.75picm³
 
        
             
        
        
        
A. Is the correct answer hope this helped support me by thanking me and give brainliest
        
             
        
        
        
Answer:
N = 4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
It should be -64
Step-by-step explanation: