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.
Answer:
y+3=-5(x-4)
Add 20 characters to explain the point
Answer:
D
Step-by-step explanation:
