- 9 + 12 = 3 or +3
Hopes this helps! =)
        
                    
             
        
        
        
Answer:
Flying Disc should be 72
Step-by-step explanation:
circumference = πd
<u>HD Coin</u>    C = 3π
                   9.42477796077
<u>Flying Disc</u>.  C = 23π
                       <u><em>72.2566310326</em></u>
<u><em>
</em></u><u>Jar Lid </u>      C = 8π
                   25.1327412287
<u>Flower Pot</u>     C = 15π
                         47.1238898038
 
        
             
        
        
        
One of them is -6 the other one would be 6
        
             
        
        
        
Answer: 12 nickels 
Step-by-step explanation:
 
        
             
        
        
        
Y-4X =3 ; 2x-3y=21
Y= 3+ 4x 
2x -3( 3+4x)= 21
2x- 9- 12x= 21
-10x -9= 21
-10x -9+9= 21+9
-10x = 30 
X= 30/-10= -3
Y= 3+4x = 3+ 4* (-3)= 3-12= -9