it depends how long the width and the length is. If the length is 5 cm and the width is 4 cm the perimeter will be 18cm. All you have to do is 5 doubled because there 2 sides for the length and 4 doubled because there are 2 sides for the width. I hope I have answered your question. XD
 
        
                    
             
        
        
        
Answer:
vertex=(1,-3)
y-intercept=(0,-2)
x-intercept=(1,+\sqrt{3},0) 
axis of symmetry= 1 
 
        
             
        
        
        
Answer:
x + 7(-5)
Step-by-step explanation:
Not sure if this is right or not...