HELP I WILL MARK BRAINLIEST

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)

How do you find the area of a triangle

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.