3. The Tinyton Public School Board is taking bids on the city's four school bus routes. Four companies have made bids. X denotes that a particular company did not make a bid on a particular route. Route 1 2500 X 3000 Route 2 3000 4000 Company 1 Company 2 Company 3 Company 4 X Route 3 1500 x 2000X 4000 Route 4 X 4000 X X ARE 5000 6 Assume the bidder can be assigned only one route. Minimize Tinyton's cost of running the four bus routes. (10 points) Assume the bidder can be assigned two routes. Minimize Tinyton's cost of ruming the four bus routes. (10 points)