O compunere despre Matilda

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?

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

Sole the equation 6n + 9 = -3n - 21 - 6 for n