Square ABCD was dilated to form square A’B’C’D’. What scale factor was used?

Answer 1

no idea.
But you can tell by dividing the new side length by the old side length
If only the area is given, the scale factor is the square root of the ratio.

Answer 2

I'm thinking the scale factor used was 3?? not to sure tho. study hard and you'll learn

Answer 3

3/5