Ducky, Lane, Cartoonlens, CALLMEBAGELS, and Country girl, please come here (This isn't a question)

Need on this geometry question. explain how you did it.

Darian wants to build a regulation size pool table that is 9 feet in length.he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)