which situation best represent a proportional relationship

kelly sold 2 rings for $3 and 3 rings for $6
lawrence packed 27 plates in 9 boxes and 81 plates in 27 boxes
jeff ran 4 miles in 20 minutes and 6 miles in 24 minutes.
francesca placed 8 pencils in 2 cases and 16 pencils in 8 cases.

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

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: .

Is the figure congruent? yes or no?