Please help me (not a test question)

Which expression gives the area of the triangle shown below

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 graph: .

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?