24. Of 145 runners, 72 run only on weekends and 63 run on both weekends and during the week. How many
of the runners run only during the week?

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.