3. DETAILS LARPCALC10 7.6.042. ASK YOUR TEACHER An accounting firm has 600 hours of staff time and 200 hours of reviewing time available each week. The firm charges $1100 for an audit and $350 for a tax return. Each audit requires 60 hours of staff time and 16 hours of review time. Each tax return requires 10 hours of staff time and 4 hours of review time. What numbers of audits and tax returns will yield an optimal revenue? audits 4 tax returns 16 x What is the optimal revenue? $ 10000 X