1. The problem is to find the total cost for 5 liters of milk if 1 liter costs 3.59. 2. The formula to calculate total cost is: $$\text{Total Cost} = \text{Price per liter} \times \text{Number of liters}$$ 3. Substitute the given values: $$\text{Total Cost} = 3.59 \times 5$$ 4. Multiply: $$3.59 \times 5 = 17.95$$ 5. Therefore, the total cost for 5 liters of milk is 17.95.