Answer:
406 pieces. If you multiply 58 times 7 you get 406. 406 divided by 58 is 7. 
 
        
             
        
        
        
Answer:
The first step is to replace the y in y-x=15 with 7x (we can do this because the first equation tells us that they're equal)
solve and get
(2.5,17.5)
or x= 2.5 y=17.5
Step-by-step explanation:
The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x
7x-x=15
6x=15
x=2.5
Then we can solve for y
y=7(2.5)
y=17.5
 
        
             
        
        
        
0.04 is the answer to this question
        
             
        
        
        
Ok I don’t have any idea what I’m going out tomorrow if I don’t know want to do anything tomorrow I