Does the equation y = x/2 represent a proportional relationship

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read