Answer:₱50.75 per day on the first four days, and on the fifth day he saved ₱150.75Step-by-step explanation:Step 1: Let the regular daily saving be pesos.For the first 4 days, Migs saves 4 pesos.On the 5th day, he saves x+100 pesos.Step 2: Write the equation for the total savings4+(+100)=353.754x+(x+100)=353.75Step 3: Simplify4++100=353.754x+x+100=353.755+100=353.755x+100=353.75Step 4: Subtract 100 from both sides5x=253.75Step 5: Divide by 5x=50.75✅ Answer:Migs saved ₱50.75 per day on the first four days, and on the fifth day he saved ₱150.75 (₱50.75 + ₱100).