The law of cosines is used to find the measure of Angle Q. Triangle Q R S is shown. The length of Q R is 20, the length of R S is 24, and the length of Q S is 34. To the nearest whole degree, what is the measure of Angle Q? 44º 49º 54º 59º

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?

Can anyone me with this question?

Alayna wonders how much water it would take to fill her cup she drops her pencil in her cup and notices that it just fits diagonal the pencil is 17 cm long and the cup is 15 cm tall how much water can the cup hold