1. (20 points) CVS Pharmacy on Shelby Street has decided to stay open on a 24-hour basis. Its store manager has divided the 24-hour day into 4-hour periods (6 of them) and determined and determined the following personnel requirements for each period: Time Personnel required Midnight to 4am 5 4am to 8am 7 8am to noon 7 Noon to 4pm 9 4pm to 8pm 6 8pm to midnight 7 Personnel must report for work at the beginning of one of these times and work 8 consecutive hours (i.e. shift 1 is Midnight to 8am). The store manager wants to know the number of employees to assign to each 8 hour shift to minimize the total number of employees. The employees all make the same hourly rate