Tamara works at a clothing store and earns a monthly salary of $800 and makes a 15% commission on her sales. If she sells $1,500 this month, how much will she make on her paycheck for the month?

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?