Secant of theta squared divided by secant of theta squared minus one

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

F(x)=x/2-2 and g(x)=2x^2+x-3 find (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?