160/4=40 so each side is 40. Divide the perimeter by how many sides you have.
        
             
        
        
        
Answer:
28 
Step-by-step explanation:
21/2 * 8/3 = 28
 
        
             
        
        
        
Answer:
C = 106.76 cm
Step-by-step explanation:
In the diagram, we are given the diameter (d), which is 34 cm.  Using the formula you are given, we know circumference is 3.14 × d
C = 3.14 × d
C = 3.14 × (34)
C = 106.76 cm
The circumference is around 106.76 cm
 
        
                    
             
        
        
        
Answer:
24%
Step-by-step explanation:
there are 50 numbers total
number of 4's: 7
number of 7's: 5
it's asking for the odds of a 4 or a 7 meaning that they're fine with either one. that means you can ADD the number of them up! 
7 + 5 = 12
to get the odds, we need to divide!
convert that into a percent! 
24%
let me know if you're still confused :))
 
        
             
        
        
        
Answer:
A.\ \ r(d)=-100(d-25)^2+122,500
Hope this helps!