Ill i need to know is the fraction please

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

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,