Answer:
Step-by-step explanation:
r = -7.714285714
 
        
                    
             
        
        
        
10 because first brackets is 0 second brackets is 10 15*0 is 0   0+10 is 10
        
             
        
        
        
Answer:
6
Step-by-step explanation:
All you have to do is divide -4 on both sides and you get 6!
-4x= -24
/-4   /-4
x  =  6
I hope this helps, and have a great day!
 
        
             
        
        
        
Is there any choices for it
        
             
        
        
        
The triangle inequality theorem states that any side of a triangle is always shorter than the sum of the two other sides. 
That means if you add up the distance from jacksonville to tampa and the distane from tampa to miami, the distance from jacksonville to miami must be less than that. 
171 miles + 206 miles = 377 miles
the distance from jacksonville to miami must be less than 377 miles