Which algebraic expression is a ploynomial with a degree of 5

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?

Given abc find the values of x and y. in your final answer, include all of your calculations.

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start