Let point A(x,y) be the point on the x-axis. All points that lie on the x-axis have y-coordinate equal to 0, then A(x,y).
Find the distance from point A to point (12,-5):

This distance is equal to 13, then

You get two ponts (0,0) and (24,0). 
 
        
             
        
        
        
Answer:
 5.18 miles each day 
Step-by-step explanation:
3 weeks × 6 days = 18 days 
93.24 miles in 18 days gives an average of 93.24 ÷ 18 = 5.18 miles per day 
 
        
             
        
        
        
Answer:
2
Step-by-step explanation: