Answer: 8(8u-5)
Step-by-step explanation:
Find a number that goes into both 64 and 40 the GCF of both is 8 so 8 goes on the outside of the new factor 8u-5 because if we distribute back we should arrive at the original equation 
8(8u-5)
 
        
             
        
        
        
Rewrite equation so that it is homogeneous . 

Solve characteristic equation:
 
 The solutions to the homogeneous equation are:

Finally you need the constant term in "cy" to equal 'd' to satisfy the particular solution.
 
 
        
        
        
Yes because all sides would be equal to 5 which would give you 5*4 = 20 units. 
        
                    
             
        
        
        
Answer: 28,345.72
Step-by-step explanation:
46.93×60
 
        
             
        
        
        
The distance (d) traveled by the airplane is the product of multiplying the speed (s) and the trip took (h). The equation is shown below, 
                                           d = s x h
Substitute the known values to the equation, 
                                       637.5 miles = (150 mile/ hour) x h
Manipulating the equation,
                                       h = (637.5 miles) / (150 mile/ hr) 
h is equal to 4.25 hours.