15.5, because 31 divided by 2 is 15.5.  And all the other number divided by the number below them also turns out to be 15.5. 
Hope this helps. :)
        
                    
             
        
        
        
Answer:
One partner will pay $15600 and the other would pay $36400
Step-by-step explanation:
52000 ÷ (3 + 7) =
52000 ÷ 10 = 
5200
5200 x 3 = 15600
5200 x 7 = 36400
 
        
             
        
        
        
Answer: 
Step-by-step explanation:
The period is  .
.