Sunayna got 15 out of 20 full marks and viswant fot 35 out of 50 full marks. Express their marks as the fractions of the full marks and identify who has better performance.​

What are the domain and range of the function below? a) domain: (-4,0) range: [-2,infinity) b) domain: (-3,0) range: [-2,infinity) c) domain: (-infinity, infinity) range: [-2, infinity) d) domain: [-2,infinity) range: (-infinity, infinity)