What is the product of 3 and 57 explain your thinking

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: .

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Which of the following represents the length of a diagonal of this trapezoid?