Answer:
c
Step-by-step explanation:
 
        
             
        
        
        
Answer:
the answer is 600mph
Step-by-step explanation:
because 1800miles/3 hours=600mph
 
        
                    
             
        
        
        
What answer are you looking for percents,fraction form, etc ?
        
             
        
        
        
A.
lxl=7     
x=7                   x=-7      (Take two cases, one as the others side negative and the other as positive)
B. 
l2xl=32
2x=32               2x=-32
x=16                 x=-16
C.
lx+7l=10
x+7=10             x+7=-10
x=3                   x=-17
D.
lxl=53.1
x=53.1              x=-53.1
        
                    
             
        
        
        
That's already rounded to the nearest hundredth, so the answer is 3419.46.
The picture below will help you.