The heights in centimeters of 5 students are: 165, 175, 176, 159, 172 find the sample median, sample mean and sample variance.

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?