A powdered sports-drink mix is prepared so that the finished drink has a mass ratio of 1 part powder to 16 parts water. The drink will be dispensed into 9 identical tanks, each of which holds 36 liters of the prepared drink. The density of the finished drink is approximately 1.05 kg/L. The powder is sold only in 0.75-kilogram canisters that cost $12 each.
What is the minimum total cost of powder needed to fill all 9 tanks?