Liz needs to keep no less than $500 in ner
checking account to avoid fees. she had
$524.75 before writing a check for $65.99.
how much does she need to deposit into
her account to avoid a fee?
i need the inequality and 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?