7w -17=46 need help thanks

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?

10 points? me . its important ‼️‼️

Which of the following is the sum of 3 1/6 + 6 3/8?