Please help me and hurry thx

What is the missing constant term in the perfect square that starts with x^2 -20x

(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

What number line represents the solution set for the inequality -1/2 greater than or equal to 4