A store purchased a set of golf clubs for $90.70 and marked it up 150%. During a sale, the store marked it down 80%. What was the discount price of the set of golf clubs?

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)