3x^3 -3x^2 -18x = 3x(x^2 -x -6) = 3x(x-3)(x+2) so the 3rd choice is right sure 
hope helped 
        
             
        
        
        
Answer:
I'm not sure but try 13.5.
Step-by-step explanation:
It might not be correct sorry
 
        
             
        
        
        
Answer:
A. <2
B. <3
Step-by-step explanation:
The remote interior angles are just the two angles that are inside the triangle and opposite from the exterior angle
Remote interior angles of <1 are <2 and <3