2,205 hours a year. 
245 days a year.
        
             
        
        
        
Yes, the common factor is (2x+5)  and the equation can be expressed as:
(x^3-4)(2x+5)
        
                    
             
        
        
        
C) Line a increases more rapidly than line B
        
                    
             
        
        
        
Answer:
  The value of the boat after 3 years is  
  
Step-by-step explanation:
we know that
The  formula to calculate the depreciated value  is equal to  
 
  
where  
V is the depreciated value  
P is the original value  
r is the rate of depreciation  in decimal  
x  is Number of Time Periods  
in this problem we have  

substitute
 
  

