Modify the bus route assignment model, assuming that company 1 decides to place bids on routes 7 and 8 (in addition to its current bids on other routes). The bids on these two routes are $5200 and...

Modify the bus route assignment model, assuming that company 1 decides to place bids on routes 7 and 8 (in addition to its current bids on other routes). The bids on these two routes are $5200 and $3300. Does the optimal solution change?

A bank needs exactly two employees working each hour from 9 A.M. to 5 P.M. Workers can work the shifts and are paid the wages listed in the file P04_74.xlsx. For example, a worker working 9 A.M. to 2 P.M. is paid $42.00. Find an assignment of workers that provides enough workers at minimum cost.