Well it depends on how well you take care of it, they don't really have a certin amount of times that you can use it un'till you have to get rid of it 
        
             
        
        
        
Answer:
A stairway, ladder, ramp or other safe means of egress shall be located in trench excavations that are 4 feet.
 
        
             
        
        
        
Copyrighttttttttttttttttttttttttttttttt
        
             
        
        
        
Answer:
you have a B flat and a E flat so circle the notes that lie up with the small lower case B's.
Explanation:
 
        
             
        
        
        
Hello There! 
In art, "Value" changes from dark to light. In an artwork, value creates areas of illusion of three dimensions on a two dimensional surface.