Which expression represents "10 subtracted from the quotient of 3 and a number"? 10−3n 3n−10 3n−10 10−3n

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 graph: .