If the height of a rectangular solid is held constant, the volume varies jointly with the length and the width. If the volume is 180 cubic inches when the length is 9 inches and the width is 5 inches, find the volume when the length is 8 inches and the width is 6 inches.

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What is the inverse of the function f(x) = 2x + 1?

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?

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