A landscaper has 125 times to build a square patio the patio must have an area of at least 80 ft.² hey. What are the possible arrangements for the patio b. How many tiles are not using each arrangement

QA.

Assuming the dimensions have to be in exact feet then you could have

9ft * 9ft = 81square feet

10 ft * 10 ft = 100 square feet

11 ft * 11 ft = 121 square feet.

QB.

If each tile is 1 ft * 1 ft ie 1 square foot

Then

9' * 9' would mean 125 - 81 = 44 tiles would not be used

10' * 10' = 125 - 100 = 25 tiles not used

11' * 11' = 125 - 121 = 4 tiles not used