Which function has the greatest constant of variation? A 9 10 11 8 Х 22.5 20 25 у 27.5 No Х 1 3 4 у 3.2 6.4 9.6 12.8​

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?