PLEASE HELP !! If you don’t know the answer then could you lmk what formula to use ??

Find the missing part. use an improper fraction for your answer.

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?