1. **State the problem:** Saimond earns a minimum wage of 570.63 per day in Metro Manila. He worked full shifts from Monday to Thursday and a half day on Friday. We need to calculate his total earnings for the week before tax. 2. **Formula used:** Total earnings = (Number of full days worked \times Daily wage) + (Number of half days worked \times Half daily wage) 3. **Calculate full days earnings:** Full days worked = 4 (Monday to Thursday) Daily wage = 570.63 Full days earnings = $4 \times 570.63 = 2282.52$ 4. **Calculate half day earnings:** Half day worked = 0.5 Half day wage = $\frac{570.63}{2} = 285.315$ 5. **Calculate total earnings before tax:** Total earnings = $2282.52 + 285.315 = 2567.835$ 6. **Calculate tax amount:** Tax rate = 0.12 Tax amount = $2567.835 \times 0.12 = 308.1402$ 7. **Calculate earnings after tax:** Earnings after tax = $2567.835 - 308.1402 = 2259.6948$ **Final answer:** Saimond earned $2567.835$ before tax and $2259.6948$ after tax for the week.