Question 1073662
Each plate is 8 in. in diameter, and there are 6 plates; which take up 48 in of a 104-in. wall. Assuming equal spacing between the plates from each other, and the border, makes 7 spaces.
104-48=56 inches of space
56/7=8 ins. between plates from each other and the outside borders. ☺☺☺☺