An accounting firm has 1157 hours of staff time and 180 hours of reviewing time available each week. The firm charges $225 for an audit and $45 for a tax return. Each audit requires 78 hours of staff time and 8 hours of review time. Each tax return requires 13 hours of staff time and 4 hours of review time.

What number of audits and tax returns will yield the maximum revenue?

audits
tax returns

What is the maximum revenue? $