Me solve this problem i’m really lost first answer gets

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?

Wrote and expression for the difference of p and 4

What number line represents the solution set for the inequality -1/2 greater than or equal to 4