During the first semester of the school, Avery and Eitan spent a combined 60 hours practicing the violin for an orchestra concert. If Avery practice 15 hours less than twice the amount than Eitan did, how many hours did each person practice playing the violin?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?