Wilbur landed his plane The plane's elevation relative to the ground (in meters) as a function of time (in seconds) is graphed.
How fast did the plane descend
(A) 4 meters per second
(B) 6 meters per second
(C) 5 meters per second
(D) 7 meters per second

Ineed if you could explain and give me the answer you! this needs done

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

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?