Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah, a total of 14 people took the trip. She was able to purchase coach tickets for ​$190 and first-class tickets for ​$950. She used her total budget for airfare for the​ trip, which was ​$6460. How many first-class tickets did she​ buy? How many coach tickets did she​ buy?

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

What is the solution to the equation e3x=12? round your answer to the nearest hundredth