A circular railroad-crossing sign has a diameter of 30 inches. R XR Which measurement is closest to the area of the sign in square inches?

3. solve the given inequality and graph the solution on a number line.

Find the solution of system of equation y= x-4 y=4x+2

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).