Answer:
-1
Step-by-step explanation:
m = -7 / 7 = -1 / 1 = -1
As there are 81 tiles total, that makes your area 81. Being a square, that makes your area equation A=s^2. As you need a side, this makes your equation s=√A. Plugging in 81 as A, we get s=√81=9, so an edge has 9 tiles.
126
explanation: solved it
Answer:
9
Step-by-step explanation:
11 - 2 = 9
