The rate for one unit of a given quantity is called a(n) Unit Rate.
So 1 hour= 60 minutes
60+25= 85 minutes
Now we should subtract the 42
85-42=43
The answer is b foo im pretty sure
Rearranging the first equation gives:

Substituting this into the other equation gives:

If x=-1:

So
x=-1, y=-5