1) Find the nth term of the geometric sequence. a1=8, n=16, r=-2 2)Find the nth term of the geometric sequence. a1=2, n=6, r=3

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?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

Which equation can be solved to find one of the missing side lengths in the triangle? cos(60o) = cos(60o) = cos(60o) = cos(60o) = mark this and return