Write the expression for the phase 7 inches shorter than Sue

Which of the following represents the range of the graph of f(x) below

What is the distance between point a and b

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?