For what value of theta (0

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

What is the square root of 45? (step by step working plz)

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?