How old am i if 300 reduced by 3 times my age is 72

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.