I don’t know if you can see this but I hope it does if u don’t understand let me know so I can explain!
You would have none left. If you started with one cup of cornmeal and then you used that one cup of cornmeal to make the muffins, you would have none left
R = 30 because r = 1,5,10,25
30/5+1=7
6+1=7
Ok so first equate all the three equations whether by substituting or by eliminating then choose the one das not the answer