A decorating store specializing in do$-$it$-$your$-$self home decorators must decide how many information packets to prepare for the summer decorating season. The store managers know they will require at least $400$ copies of their popular painting packet. They believe their new information packet on specialty glazing techniques could be a big seller, so they want to prepare at least $300$ copies. Their printer has given the following information: The painting packet will require $2\mathrm{.}5$ minutes of printing time and $1\mathrm{.}8$ minutes of collating time. The glazing packet will require $2$ minutes for each operation. The store has decided to sell the painting packet for $$5\mathrm{.}50$ a copy and to price the glazing packet at $$4\mathrm{.}50.$ At this time, the printer can devote $36$ hours to printing and $30$ hours to collation. He will charge the store $$1$ for each packet prepared. How many of each packet should the store order to maximize the revenue associated with information packets, and what is the store$$s expected revenue?

Note that since we only care about revenues you can ignore the $$1$ cost per packet. Make sure your units match.