You are working at Gas & Liquids $($founded in $\text{'}87).$ Your company is very proud that it has a lot of famous customers such as Jimmy's Autoshop and $2-4-6-$CarRepair. One warehouse serves seven different customers. The figure below shows the locations of your warehouse $($WH$)$ and the customers. Your WH is located where the red square is and the customers are located where the black diamonds are.

Each week you are sending trucks to resupply the oxygen tanks at your customers.