PLEASE HELP AND DON'T IGNORE 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

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

What is the product? a-3/15a × 5/a-3