I don’t know why there’s so many numbers to this help me

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?

Find the measure of angle x. a. 11° b. 12° c. 17° d. 61°

If p{a) = 0.60 and p(b) = 0.20, then a and b are independent events if hs