One of the advantages is that you won't have to remind them and you'll save.paper and another is that the person do sent end up with a big balance they have to pay off 
some disadvantages is that the check could bounce if you accept checks 
hope that this helps
        
             
        
        
        
Refractory Periods (Absolute) The cell cannot accept another impulse because it's still dealing with the last one. Absolutely no stimulus, no matter how strong, will result in another depolarization.
        
             
        
        
        
Answer:
 Start by standing with a weight in each of your hands. Your elbows should rest at your sides and your forearms should extend out in front of your body. Your knees should stay slightly bent. Bring the weights all the way up to your shoulders by bending your elbows. Once at the top, hold for a second by flexing the muscle. Reverse the motion slowly and repeat. Make sure your body is steady and you have good footing and posture. 
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Answer:
Was this for a different problem that you were trying to solve?
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