Find the length of AC.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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?

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.