please solve these for me

1. Bechtold Construction is in the process of installing power lines to a large housing development. Steve Bechtold wants to minimize the total length of wire used, which will minimize his costs. The housing development is shown as a network on this page. Each house has been numbered, and the distances between houses are given in hundreds of feet. Apply Advanced-Prim's Method to find the network with minimum cost (starting from house number one). [5 Marks] 2. In a job shop operation, four jobs may be performed on any of four machines. The hours required for each job on each machine are presented in the following table. The plant supervisor would like to assign jobs so that total time is minimized. Find the best solution using Hungarian Method. Which assignments should be made? [5 Marks] 3. The Ontario Millers Association ships rice to four building-supply houses from its mills in Toronto, North York, Scarborough, Ajax, and Markham. Determine the best transportation schedule for the data given in the table below using Vogel's Approximation Method. Find the total cost. [5 Marks]