If Sophia earned $36 dollars at her job while working for 4 hours. We would just need to divide 36 by 4 to get what she worked for 1 hour. Which is 9.
Now we know the unit rate is $9 per 1 hour we can divide 54 by 9 to get 6.
So essentially the answer is
9,1.
36,4.
54,6
I apologize if anything is incorrect.