A middle school took all of its 6th grade students on a field trip to see a symphony. The students filled 855 seats, which was 45% of the total number of seats in the theater. How many total seats were in the theater?

For the equations below which statement is true ? -2x=14 6x=-42

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

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?