$8\mathrm{.}8.$ PM Computer Services $($described in Example $8\mathrm{.}3)$ has received an order for $120$ custom$-$configured personal computers for a local business. Paulette and Maureen have so many orders that they can no longer perform the work themselves, and they must hire extra labor to assemble the units for this new oder. They have hired eight students from the university to work part$-$time, $20$ hours per week, to assemble the computers. Paulette and Maureen assembled a prototype unit and it required $26$ hours of direct labor; from experience, they know their computer assembly operation has an $84\%$ learning curve. Approximately when will PM

Computer Services be able to deliver the completed order?