Plsss help i need a good grade

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?