Four laps every two minutes. look down from the slope. thats tje tome or minutes and if you look to the left thats how many laps.
To calculate the mean you have to add up all the numbers on your list so if you added up all those numbers you would get 409. Then you divide it by how many numbers were in the list (how many numbers did you add up) this would be 5.
409 divided by 5 is 81.8. So 81.8 would be your answer since they said to round to one decimal. I hope this helps!
I think it’s C I hope this helps