Solve this system of equations.

How do i do this? i don’t understand

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles