Explain how to calculate a unit rate such as 300 miles per hour 4 hour i need help I'm kind of stuck

Graph the equation. select integers for x

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

Which value would be a solution for x in the inequality 47-4x< 7