Please Help!

Use the Solver please

A truck must travel from New York to Los Angeles. As shown in the diagram, several routes are available. The number associated with each arc is the number of gallons of fuel required by the truck to traverse the arc. Use Excel model to determine the route from New York to Los Angeles that uses the minimum amount of gas. (Hint: Similar to the short-route problem). In the excel model, use a single letter or number index to denote the cities instead of typing the full city names