14. It took a submarine 20 seconds to drop 100 feet below sea level from the surface. Which integer represents the number of feet the submarine moved in 1 second?
A. 5 feet
C. 200 feet
B. -5 feet
D.-200 feet

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?