Bettina spent $75 on 5 shirts that each cost the same price. three of the shirts were red. which expression represents the total cost of the red shirts? a. 75 × 3/5 b. 75×5/3 c. 75/5 ×1/3 d. 75/3 × 1/5 plz

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?