HELP! will mark branniest answer

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

What is the total area of the figure?

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?