Answer:
b because 23.59+ (-16.75) = 6.84
Step-by-step explanation:
 
        
                    
             
        
        
        
Hey there! :D
Plug in the points to see if they work. 
y=7x
(2,14) -> (x,y)
14=7*2
14=14
That works. 
(0,0) 
0=7*0
0=0
That works 
(1,7)
7=7*1
7=7
That works. 
The points that work are (2,14), (0,0), and (1,7)
I hope this helps!
~kaikers
        
             
        
        
        
Answer:
Multiply 4 by the difference of 10 and 3, then add 5
 
        
                    
             
        
        
        
Time taken to ride 1 mile=7 min.
So time taken to ride 4 mile=4×7=28min.