Please help me
with this question

How can you decide witch operations to use to slice a two step equation

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

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?