os Carlo and Anita make mailboxes and toys in their craft shop near Lincoln. Each mailbox requires 1 hour of work from Carlo and 1 hour from Anita Each toy requires 1 hour of work from Carlo and 2 hours from Anita Carlo cannot work more than 8 hours per week and Anita cannot work more than 12 hours per week. If each mailbox sels for $9 and each toy sells for $20, then how many of each should they make to maximize their revenue? What is their maximum revenue? Carlo and Anita should make mailboxes and toys. Their maximum revenue is $ 4. ribed