Answer:
Step-by-step explanation:
use a combination of numbeers letters 
 
        
                    
             
        
        
        
Answer:
y=-17
Step-by-step explanation:
y=mx
20.4=m×6
20.4÷6=m
3.4=m
y=3.4×-5
y=-17
 
        
                    
             
        
        
        
Answer:angle x=5
Step-by-step explanation:
Sum of triangles =180 ,x+90+45+40=180, x+175=180 ,x =5
 
        
             
        
        
        
Answer:
5 and negative 5
Step-by-step explanation:
The absolute value is the distance from 0 five and negative 5 are both the same distance from zero
 
        
             
        
        
        
The resulting equation 75 = 75 is an identity; this tells that the two equations of the system are equivalent, this is they both represent the same function. So, Lian can conclude that (option c) both gyms charge the same monthly rate and the same membership fee<span>.</span>