In a raffle where 2000 tickets are sold for $2 each, one first prize of $500 and one second prize of $100 will be awarded. What is the expected value of a single ticket in the raffle? Round your answer to the nearest hundredth, and do not include a $ sign or the word "dollars" in your response

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Does the point (1, sqrt 7) lie on circle shown.

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?