The area of this irregular figure sq ft

This question awards 100 ! i really don’t want to fail i will also mark you !

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Rewrite so the subject can be y in the formula d=m-y/y+n