I beg someone help me on the question

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

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?

Math question.. plz me .. best answer all