A customer receives a new credit card and makes the following transaction. A cash advance of $1000 on October 10. She makes $2000 purchase between October 12 and October 21. Her due date on the bill is November 3 and the yearly interest-rate is 18%. Interest is only in cash advance and over due payments. how much does she owe?

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?