Can someone help me?

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: .

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Is the figure congruent? yes or no?