The price of each ticket will be the slope found from the data.  
Slope=m=(y2-y1)/(x2-x1)=(177.5-146.25)/(18-13)
m=6.25  (so the cost of the tickets is $6.25)
Now we can use any data point to solve for b, or the y-intercept of the line:
y=6.25x+b, using (177.5, 18)
177.5=6.25(18)+b
b=$65.00d
So he started with $65.00
        
             
        
        
        
Answer:
I'm pretty sure its B.
Step-by-step explanation:
lame couldn't just answer smh
 
        
                    
             
        
        
        
5/6 is your answer, explanation is in the image, hope this helps! :D
 
        
        
        
This is the answer not sure if you wanted it graph or not