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If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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: .

Three times the sum of a number and seven is negative thirty-six. what is the number?