Which of the following is a unit rate?
3:1
2:8
1:8
5:6

The graph shown is the graph of which function?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?