Answer:To calculate the cost of gasoline in the following week and the percentage decrease per liter, we can follow these steps: 1. Calculate the new cost of gasoline in the following week:New cost = Current cost - Decrease per liter2. Calculate the percentage decrease per liter:Percentage decrease = (Decrease per liter / Current cost) * 100% Given: - Current cost of gasoline = P54.40 per liter- Decrease per liter = P1.10 Let's calculate the new cost of gasoline in the following week and the percentage decrease per liter.It seems there is an issue with the code interpreter at the moment. Let me calculate the values manually. Given: - Current cost of gasoline = P54.40 per liter- Decrease per liter = P1.10 1. New cost of gasoline in the following week:New cost = P54.40 - P1.10New cost = P53.30 per liter2. Percentage decrease per liter:Percentage decrease = (P1.10 / P54.40) * 100%Percentage decrease ≈ 2.02% Therefore, the cost of gasoline in the following week will be P53.30 per liter, and there will be approximately a 2.02% decrease per liter.Step-by-step explanation:Hope this helps.