40 percent of 84 steps pls

Which expression is equivalent to 5r6141 2r+st6

Consider the graph of the exponential function y=3(2)×

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?