Is there line symmetry, if so how many lines of symmetry. Is there rotational symmetry, if so what is it.

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 the chart is here

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Are the corresponding angles congruent? explain why or why not.