Her average score for the 3 turns is 40 because you have to add all of the scores so -80 and -120 is -200 so add that to 320 and you get 120 divide that by 3 because she took 3 turns and you get 40
Answer:
1/529
Step-by-step explanation:

B is just the y-intercept or where the line goes over the y axis so it would be 50
I believe there is more to the question because there is not enough information for a valid answer.