Answer:
Step-by-step explanation: you brine is smart use it 
 
        
                    
             
        
        
        
Answer:
its a 30 my friend and if its not a then choose b hope this helped
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=20
Step-by-step explanation:
x - 5 = 15
x +5 = +5
x = 20
 
        
                    
             
        
        
        
Answer:
1cm to 200cm
Step-by-step explanation:
l of giraffe = 6m = 600cm
l of giraffe drawing = 3cm
scale = drawing : real = 3 : 600 = 1 : 200
Therefore the scale is 1cm to 200cm
 
        
             
        
        
        
Answer:

Step-by-step explanation:
We can add the two equations to eliminate  and solve for
 and solve for  .
.



Now, we can find for  by using substitution:
 by using substitution:
 (given)
 (given)


Hope this helps :)