Does anyone knows this please!

-2x x 5x
-(8x)^2

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

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?