I will give brainiest

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?

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?

Find the measure of angle b in the following triangle