Kelly should get back $6.72.
To get this answer, start by adding 16.79 and 28.49. The answer you should get is 45.28. Next, subtract 45.28 from 50 and your total should be 6.72. Hope this helped!
The answer is (15,0) because the format is (x,y) so (15,0) means that it is on the x axis only !
