Which is the farthest jump distance? 5.77 meters, 5.87 meters, 5.9 meters or 5.80 meters

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

We just started the introduction into circles and i have no idea how to do this.

What is the result of adding the system of equations? 2x+y=4 3x-y=6