The number of 8th graders in choir is three times the number of the 7th graders. if there are 48 8th graders choir how. many 7th graders are in choir

How can we find the measure of an exterior angle if we know the measurement of an interior angle

What is the value of x in the diagram below?

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?