The length of corresponding sides of two squares are in the ratio 3:1 . If the larger square exceeds the area of the smaller square by 63in ,find the area of the smaller rectangle

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?