The answer is just C your welcome
3m-9=9+3m
add 9 to both sides
3m=18+3m
minus 3m both sides
0=18
false
no solution
the best discription would be an empty solution set
Paul surely charges 75 dollars, and then he adds 40 dollars per hours. This means that the expression for the money he asks is
where 
is the amount of money and 
is the number of hours.
Since 
can be at most 8, this is the case that generates the highest money, so if we plug 
we have
Given fraction:
-(6/-7)
Apply plus/minus rule:
-(-a)=a and -(a)=-a
So -(6/-7) = -6/-7= 6/7
Option D is correct.
Answer: (-6/-7)
