Answer:
The format of this equation is wrong
C- in the table every ratio y/x is equal so the relationship is proportional
1 hour = 60 minutes
13/60 = 0.2
answer: 0.2<span>m/min
</span>
We need to leave m alone on the right hand side, so let's move everything else to the left hand side.
First of all, we can subtract b from both sides to get

Now, we can divide both sides by c to get

And so we solved the expression for m, because we have written an expression in the form
, where the right hand side doesn't depend on m.