HELP PLEASE ASAP
Which expressions are simplified correctly? Click to select answers. Click again to unselect answers. Leave the incorrect answers unselected.

7^3/7^2 = 7

(18^3)^3 = 18^6

2^10/2 = 2^9

(9^2)^4 = 9^6

10^5/10^2 = 10^7