An accounting firm has 780 hours of staff time and 264 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 = ?

TAX RETURNS = ?

What is the optimal revenue = ? $