Maria and Ming start at the same point and drive in opposite directions. Maria drives 30 mph and Ming drives 46 mph. How far apart will they be in 2 hours?

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?