What is the next step in the proof? choose the most logical approach

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?

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

How many square inches are in 60 square feet?