Which inequaloty represents the situation "the temperature should be at least 40 degrees"?

Simplify the expression 10/11(22z) + (a+5) -1

(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

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?