If x-1/3 = k and k = 3, what is the value of x ? a) 2 b) 4 c) 9 d) 10

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