A train travels 2 1/2 miles in 1/3 of an hour. How many miles per hour does the train go? pls, help asap.

Factor the monomial completely 42a3b3

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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?