Can someone me with this ? and can you explain why that answer is right

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: .

Given right triangle abc, what is the value of tan(a)?

What is 4 square root 7^3 in exponential form?