Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
Step-by-step explanation:
the formula to calculate a circumference is 

(consider x as the diameter)
so I'll be noting the circumference as C alongside the circle's ranking
a.

b.

c.

hope I helped
 
        
             
        
        
        
Answer:
You will save $2 if you buy from Picture Perfect Pizza instead of Pizza Outpost.
Step-by-step explanation:
First we need to find the unit rate of each pizza from each pizza place.
Picture Perfect Pizza: $3÷2 = $1.50
Pizza Outpost: $7÷4 = $1.75
Picture Perfect Pizza: $1.5 * 8 = $12
Pizza Outpost: $1.75*8 = $14
 
        
             
        
        
        
Area of square = a^2 = 4^2 = 4 x 4 = 16
answer
16
        
                    
             
        
        
        
What are the following rates?