Please help me. I need work shown too. thankyou

(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

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

X+y=-4 x-y=2 use elimination with adding and subtraction