An accounting firm has 1067 hours of staff time and 343 hours of reviewing time available each week. The firm charges $250 for an audit and $50 for a tax return. Each audit requires 66 hours of staff time and 14 hours of review time. Each tax return requires 11 hours of staff time and 7 hours of review time. What number of audits and tax returns will yield the maximum revenue? audits tax returns What is the maximum revenue? $