How many different factors does 20 have?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

What is the value of x when x + 7 = 21?

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?