Answer:
They should insert that y value into the other equation.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Complement: 67°
Supplement: 157°
Step-by-step explanation:
Complementary angles = 90°
90-23=67°
Supplementary angles = 180°
180-23=157°
 
        
             
        
        
        
M / n x p = 10/-5 x -2 = -2 x -2 = 4