Daniel practises his guitar for 40 minutes every day If Daniel practises six days per week for 50 weeks per year, how many years will it take him to log up 10 000 hours of practice?

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?