What is the range of the function f(x) = 4x + 9, given the domain d = {-4, -2, 0, 2}? a. r = {-17, -9, -1, 17} b. r = {-7, -1, 9, 17} c. r = {-7, 1, 9, 17} d. r = {1, 7, 9, 17}

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?