What is (3 x 10^3) / (12 x 10^6)

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

52 cm radius = diameter = area = circumference = circumfer

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)