Answer:
7x+y=0
x+6y=5
x+y=0
Step-by-step explanation:
 
        
             
        
        
        
Pretty sure the answer is 77
        
                    
             
        
        
        
Answer: 3m 
Step-by-step explanation:
You're multiply 3 by m. Since this isn't possible unless you have m's value, you must write the expression as 3m.
 
        
             
        
        
        
Answer: 91 pounds and 7 ounces
Step-by-step explanation:
your welcomeee
 
        
             
        
        
        
y=5/2x-4
Step-by-step explanation:
im pretty sure