Can someone please help me with this?

Find the balance at the end of 4 years if 1000 is deposited at the rate of

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

Ineed to know the answer to this algebra question.