Step-by-step explanation:
substitute for y
x+3+4 = -6x
x+ 7 = -6x
7 = -7x 
-1 = x
y = -1+3
y = 2
 
        
             
        
        
        
Answer:
no
Step-by-step explanation:
80-225*1/3=80-75=5
 
        
             
        
        
        
Answer:
what are the choices?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
the answer is $8.29
Step-by-step explanation:
1.60 marked up by 60% in decimal form is .60
multiply that .60 by 1.60 and you get .64
you add .64 to 1.60 and you get 2.56
you multiply 2.56 by 3 and you get 7.68
you have a 8% sales tax so you multiply 0.08 by 7.68
you will get .61 you add that to 7.68 to get $8.29