Answer: 17.9
Step-by-step explanation:
 
        
             
        
        
        
To solve this problem, you first need to subtract 100,034-9,348. You do this because Lexi scored that many points LOWER than Rial.  You then take the answer to that subtraction problem (90,696) and add 9,749 to that answer. You do this because Susie scored 9,749 MORE than Lexi. You should get 100,435. This is Susie's score, so your final answer is 100,435 points.
        
             
        
        
        
When handling problems of this nature make sure you setup the equations. 
x = number of times they rent a boat. 
Members 
Cost = 105 + 9.50x
Non members because members don't have to pay the 105 we leave it out. 
Cost = 14.75x 
so now to determin when cost would be equal we set the two equations = to each other
105 + 9.50x = 14.75x 
now solve for x 
105 = 5.25x
 
20 = x 
so they would have to rent 20 times to equal each other. 
        
             
        
        
        
Answer:
The 3rd option or 39,600 would be the correct answer.
Step-by-step explanation:
Hope this helps:)