Please help
this is due at noon so anyone who knows this 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: .

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5